Ultimate Big Mac Casserole: All Your Favorite Burger Flavors in One Easy Dish
Imagine your favorite drive-thru burger, but transformed into a warm, comforting, and incredibly satisfying casserole – that’s exactly what you get with our spectacular Big Mac Casserole! This innovative recipe takes all the iconic elements of the beloved Big Mac, from the seasoned ground beef and gooey cheese to the tangy pickles and crisp lettuce, and layers them beautifully with golden tater tots. To tie it all together, we’ve perfected a homemade Big Mac sauce that tastes exactly like the real deal, ensuring every bite is packed with that unmistakable flavor. It’s a guaranteed crowd-pleaser and an instant family favorite!

Why This Big Mac Casserole Recipe is a Must-Try
This Big Mac Casserole isn’t just another dinner idea; it’s a culinary experience designed to evoke pure nostalgia and comfort. It perfectly captures all the distinctive flavors and textures you adore from a classic Big Mac burger, but ingeniously reimagined into a hearty casserole format. What makes it truly special? A secret ingredient – Worcestershire sauce – added to the ground beef. This simple addition significantly ramps up the umami and depth of flavor in the beef, making it incredibly savory and reminiscent of a perfectly seasoned burger patty. We’ve also swapped the traditional burger bun for a crunchy layer of golden tater tots, adding an irresistible texture contrast that perfectly complements the rich beef and melted cheese. And, of course, the star of the show is our homemade Big Mac sauce, meticulously crafted to taste indistinguishable from the original. Prepare for your family to be completely hooked on this innovative and delicious twist on a classic!
For those seeking a lighter, carb-conscious option, our Big Mac salad offers the same great flavors without the extra carbs, making it another fantastic way to enjoy this iconic taste.

Essential Ingredients for Your Big Mac Casserole
Gathering the right ingredients is the first step to creating this incredible Big Mac Casserole. While we’ll dive into specific tips for each ingredient below, you can find all exact measurements and a comprehensive list in the printable recipe card at the very end of this post. For now, let’s look at the key components that make this dish so special.

Ingredient Spotlight & Smart Substitutions
To achieve the authentic taste and texture of a Big Mac, pay close attention to these ingredient details and consider these substitution tips:
GROUND BEEF – For a richer, more robust burger flavor that truly shines in a casserole, we highly recommend using a slightly fattier ground beef, such as 85% lean. The higher fat content contributes significantly to both the taste and juiciness of the beef mixture. Since beef is the foundational ingredient here, you want that deep, savory essence to come through. If you opt for leaner ground beef (e.g., 90% or 93% lean), which has less natural fat, it’s wise to lightly grease your casserole dish with about 1 tablespoon of olive oil before adding the beef layer to prevent sticking and ensure even cooking.
CHEESE – The visual appeal of an orange-colored cheese is key to mimicking the classic Big Mac look. Sharp or medium cheddar cheese, shredded, works beautifully for its flavor and melt. For an even more authentic “fast-food” Big Mac experience, you can substitute the shredded cheese with American cheese slices. Here’s how: chop 4 slices of American cheese and mix them into the cooked beef mixture in the skillet. Then, arrange 8 additional slices evenly over the beef layer once it’s transferred into the casserole dish. This creates that wonderfully gooey, uniform melted cheese layer characteristic of a true Big Mac.
PICKLES – When it comes to pickles, stick to dill pickles that are specifically unsweetened. The signature tangy and slightly sour bite of dill pickles is crucial for balancing the richness of the beef and sauce. For the best flavor and a more economical approach, I often buy whole dill pickles and slice them thinly myself. Using a mandolin is fantastic for achieving uniform, super-thin slices, much like those found on a Big Mac, which melt into the casserole beautifully.
BIG MAC SAUCE – This homemade sauce is what truly elevates the casserole to Big Mac status. The quality of your mayonnaise is paramount here. For the best, most authentic taste, use a premium, full-fat mayonnaise brand like Hellmann’s or Best Foods. Inferior or lighter mayonnaise brands can significantly alter the flavor profile of your Big Mac sauce, so don’t skimp on this crucial ingredient! The balance of relish, mustard, vinegar, and spices needs the rich, creamy base of good mayonnaise to shine.
Step-by-Step: Crafting Your Delicious Big Mac Casserole
These step-by-step photos and detailed instructions are here to guide you through making this incredible recipe. For the printable version, complete with precise measurements and a full ingredient list, simply Jump to Recipe at the bottom of this page.
- Preheat your oven to 350°F (175°C). This ensures your oven is at the optimal temperature for even baking and crispy tater tots.
- In a large, non-stick skillet, heat the vegetable oil over medium heat. This is where we’ll start building the flavorful beef base.
- Add the chopped onions to the skillet and sauté them until they become soft and translucent, which usually takes about three minutes. It’s important not to let the onions brown, as we want their sweetness and mild flavor to enhance the beef without becoming bitter.
- Add the ground beef to the skillet. Use a wooden spoon or spatula to break it up into smaller, uniform pieces as it cooks. This helps it brown evenly and ensures a good texture in the casserole.
- Stir in the granulated onion, garlic powder, salt, and pepper. Continue cooking the mixture, stirring occasionally, until the ground beef is thoroughly browned and no longer pink. This is crucial for developing the beef’s flavor.
- Once the beef is cooked, add the Worcestershire sauce and stir well to ensure it’s evenly distributed throughout the mixture. This is our secret flavor booster!
- Remove the skillet from the heat. Allow the beef mixture to cool slightly while you prepare the irresistible Big Mac sauce. This cooling step helps prevent the cheese from immediately melting when mixed in.
- In a small mixing bowl, combine all the ingredients for the Big Mac sauce: mayonnaise, sweet pickle relish, yellow mustard, white vinegar, paprika, granulated onion, and garlic powder. Whisk until smooth and well combined. Taste and adjust seasonings if necessary to match your preference.
- Now, add ½ cup of your freshly made Big Mac sauce to the cooled beef mixture. Gently fold in 1/3 cup of the shredded cheese until just combined. This infuses the beef with that signature tangy, creamy flavor and adds a preliminary layer of cheesy goodness.
- Transfer the sauced beef mixture to a 13×9 inch casserole dish. Spread it out evenly to form the base layer of your casserole.
- Generously sprinkle the remaining 1 2/3 cups of shredded cheese over the beef layer. This will create a beautiful, melted cheese blanket that seals in all the flavors.
- Carefully arrange the frozen tater tots in neat, even rows over the top of the cheese layer. This will form your crispy “bun” topping.
- Place the uncovered casserole dish on the center rack of your preheated oven. Bake for 40-45 minutes, or until the tater tots are beautifully golden brown and crispy, and the cheese underneath is bubbly and melted.
- Once baked, remove the casserole from the oven and let it cool for about 5 minutes before adding the fresh garnishes. Top with extra dill pickle slices, a generous layer of shredded lettuce, and a sprinkle of sesame seeds for that authentic Big Mac appearance. For an added burst of color and freshness, consider adding some chopped tomatoes. Finish by drizzling the remaining homemade Big Mac sauce generously over the top. Serve warm and enjoy!
Frequently Asked Questions & Expert Tips for Big Mac Casserole
To keep your Big Mac casserole fresh and delicious, allow any leftovers to cool completely at room temperature before transferring them to an airtight container. Store the container in the refrigerator for up to 4 days. A key tip: the fresh shredded lettuce added as a topping tends to get soggy when stored in the fridge. For the best experience, I highly recommend removing any leftover lettuce before storing and then adding a fresh batch just before reheating and serving. This ensures every bite remains crisp and flavorful.
Absolutely! This casserole is fantastic for meal prepping or preparing in advance for a busy weeknight. To make it ahead, prepare the ground beef mixture as directed, then layer it with the initial amount of cheese in your casserole dish. Cover the dish tightly with plastic wrap or foil and refrigerate for up to 24 hours. When you’re ready to bake, simply take the dish from the refrigerator, add the frozen tater tots on top, and bake according to the instructions. You might need to add an extra 5-10 minutes to the baking time if starting from a cold casserole dish.
While you can freeze the cooked beef and cheese layer for later use, freezing the entire assembled casserole with tater tots is not recommended. Tater tots can become mushy after being frozen and reheated. Instead, prepare and cook the beef mixture, combine it with the cheese as directed for the base layer, and let it cool completely. Transfer it to a freezer-safe, airtight container or wrap it securely in foil. It can be frozen for up to 3 months. When ready to use, thaw in the refrigerator overnight, then spread into a casserole dish, top with fresh frozen tater tots, and bake.

Perfect Serving Suggestions for Your Big Mac Casserole
This Big Mac Casserole is a meal in itself, but a few thoughtful garnishes and side dishes can elevate the experience even further. Always remember to adorn your freshly baked casserole with the classic toppings: crunchy dill pickle slices, a generous amount of fresh shredded iceberg lettuce, and a sprinkle of sesame seeds. These not only provide authentic Big Mac aesthetics but also add essential texture and freshness. While tomatoes aren’t a traditional Big Mac topping, diced cherry or grape tomatoes offer a wonderful pop of color, a hint of acidity, and extra freshness that complements the rich casserole beautifully. Drizzle the remaining homemade Big Mac sauce liberally over individual servings or offer it on the side for those who love extra sauce. Serve it warm straight from the oven for the ultimate comforting dinner. For side dishes, consider a simple green salad to cut through the richness, or even a classic coleslaw to enhance the burger joint vibe. Enjoy!
Explore More Delicious Casserole Recipes
If you loved the ease and comfort of this Big Mac Casserole, you’ll surely enjoy our other popular casserole creations. These recipes are perfect for busy weeknights, potlucks, or anytime you need a hearty, flavorful meal with minimal fuss:
- Taco Casserole: All your favorite taco flavors baked into an easy, cheesy dish.
- Dorito Casserole: A fun and flavor-packed casserole featuring crunchy Doritos.
- Philly Cheesesteak Casserole: The iconic sandwich transformed into a comforting casserole.
- King Ranch Chicken Casserole: A classic Tex-Mex favorite that’s rich and creamy.
I absolutely adore cooking and baking, and there’s nothing I love more than sharing my culinary adventures and tested recipes with all of you! Remembering to check back for new recipes every day can be tricky, which is why I’ve made it easy for you. I offer a convenient newsletter that delivers every new recipe directly to your inbox as soon as it’s posted. Simply subscribe here and start receiving your free daily dose of delicious inspiration!

Big Mac Casserole
IMPORTANT – There are often Frequently Asked Questions within the blog post that you may find helpful. Simply scroll back up to read them!
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Ingredients
Beef Mixture
- 2 Tablespoons vegetable oil
- 1 cup diced white onion
- 2 pounds ground beef 85% lean
- 1 ½ teaspoons granulated onion or onion powder
- ½ teaspoon garlic powder
- 1 ½ teaspoon kosher salt
- 1 teaspoon black pepper
- 1 Tablespoon Worcestershire sauce
- 2 cups shredded cheddar cheese divided
- 32 ounces tater tots
- ½ cup sliced dill pickles
Big Mac Sauce
- ⅔ cup mayonnaise
- ⅓ cup sweet pickle relish
- 2 teaspoons yellow mustard
- 1 teaspoon white vinegar
- ½ teaspoon paprika
- ¼ teaspoons granulated onion or onion powder
- ¼ teaspoon garlic powder
Toppings
- 2 cups shredded iceberg lettuce
- ½ cup diced cherry tomatoes or grape tomatoes
- 2 Tablespoons sesame seeds
Things You’ll Need
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13×9 baking dish
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Large skillet
Before You Begin
- You get more flavor by using fattier ground beef such as 85% lean. Since beef is the main ingredient, you really want that flavor to come through. If you choose to use leaner ground beef, you will need to lightly grease your casserole dish with 1 tablespoon of olive oil before adding the beef layer.
- It is best to use an orange-colored cheese. Instead of shredded cheese, you can substitute with American cheese slices to get that true Big Mac experience. Simply chop 4 slices of the cheese to add to the beef mixture in the skillet and then layer 8 slices over the beef mixture once it’s in the casserole dish.
- Use dill pickles that are not sweetened. I like to buy whole dill pickles and slice them myself on a mandolin, it is more cost effective to do so and you also get a nice thin slice that is more like those found in a Big Mac.
- Make sure to use a good quality mayonnaise when making your Big Mac sauce such as Hellman’s or Best Foods. Any other mayonnaise will affect the taste of your Big Mac sauce.
Instructions
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Preheat oven to 350°F.
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Heat oil in a large, non-stick skillet over medium heat.
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Add chopped onions and fry until soft and translucent (about three minutes). Make sure the onions do not brown.
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Add the ground beef, breaking it up into smaller pieces as it cooks.
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Add the granulated onion, garlic powder, salt, and pepper, and continue to cook until the meat is no longer pink.
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Add the Worcestershire sauce and stir to combine.
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Remove the skillet from the heat and allow the beef to cool while you prepare the Big Mac sauce.
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In a small mixing bowl combine, the mayonnaise, relish, mustard, vinegar, paprika, granulated onion, and garlic powder.
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Add ½ cup of the Big Mac sauce to the cooled beef mixture and fold in 1/3 cup shredded cheese.
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Transfer the beef to a 13×9 casserole dish and spread evenly.
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Sprinkle with the remaining 1 2/3 cup shredded cheese.
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Place frozen tater tots in neat rows over the top of the cheese layer.
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Place the uncovered casserole dish on the center rack in the oven and bake for 40-45 minutes (or until the tops of the tater tots are golden brown).
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Remove from the oven and let cool for 5 minutes before garnishing with dill pickle slices, shredded lettuce, and sesame seeds. For a pop of color and freshness, add chopped tomatoes. Drizzle remaining sauce over the top.
Expert Tips & FAQs
- Store any cooled leftovers in an air-tight container kept in the refrigerator for up to 4 days. The lettuce will get soggy in the fridge so I would suggest removing it before storing and adding the shredded lettuce just before serving.
- Make Ahead – Prepare the beef mixture, layer it with the cheese in the casserole dish, and place it in the refrigerator. When ready to bake, add the frozen tater tots and bake.
Nutrition
The recipes on this blog are tested with a conventional gas oven and gas stovetop. It’s important to note that some ovens, especially as they age, can cook and bake inconsistently. Using an inexpensive oven thermometer can assure you that your oven is truly heating to the proper temperature. If you use a toaster oven or countertop oven, please keep in mind that they may not distribute heat the same as a conventional full sized oven and you may need to adjust your cooking/baking times. In the case of recipes made with a pressure cooker, air fryer, slow cooker, or other appliance, a link to the appliances we use is listed within each respective recipe. For baking recipes where measurements are given by weight, please note that results may not be the same if cups are used instead, and we can’t guarantee success with that method.