Big Mac Casserole

This big mac casserole recipe has everything you love about a classic big mac. It's filled with juicy ground beef, lettuce, onion, and pickles. Everything is covered in a homemade big mac sauce and topped with melty cheese. It's perfect! 

The Best Big Mac Casserole

This Big Mac casserole recipe is literally a big mac from McDonald's but in casserole form.

It's filled with ground beef, onions, and cheese in a decadent cream sauce. That alone is delicious, but to make it even better, the casserole is topped with melted shredded cheese, a creamy big mas sauce, lettuce, and pickles.

Hearty, flavorful, and satisfying, this big mac casserole might be even better than my traditional copycat big mac recipe. 

This casserole is the perfect meal if you're hosting and want to serve something everyone will love. Not only that, but it also makes the perfect busy weeknight dinner that'll feed the whole family!

While the big mac casserole is baking, you can make the meal even better and whip up these McDonald's french fries for a truly unforgettable dinner.

Why This Recipe Works

It's easy to make. Casseroles are clutch for a quick and easy dinner since they're so simple to put together, and this big mac one is no different. It's effortless!

Perfect comfort food meal. Warm, hearty, savory, and filling, this Big Mac casserole has everything you'd want in a comfort food meal.

A winning combination. From the ground beef to the burger toppings and creamy big mac sauce, you just can't beat the taste and textures of this casserole.

A total crowd-pleaser. Anyone who loves big macs will be obsessed with this casserole. That's why I love making it if I'm hosting.

Ingredients

Another reason to love this Big Mac casserole recipe is it's made with really basic ingredients. Check out what you'll need for the filling:

• 1 lb. lean ground beef
• ½  cup white onion, chopped
• salt and pepper
• 7 oz. cream cheese 
• 1  cups cheddar cheese, grated, divided
• 2 eggs
• ¼ cup heavy cream
• 1 cup romaine lettuce, shredded 
• ¼ cup dill pickle slices
• 1 tsp. sesame seeds

And here's what you'll need for the Big Mac sauce:

• ¼ cup sour cream
• ¼ cup mayonnaise
• 2 tsp. French dressing
• ¼ cup sweet pickle relish
• 1 tsp. classic yellow mustard
• ½ tsp. onion powder
• 1 tsp. granulated sugar
• ½ tsp. smoked paprika

You can use many of these same ingredients to make this cheeseburger casserole, so you might want to give that a try next for another delicious ground beef casserole recipe.

How To Make Big Mac Casserole

1. Prep work: Preheat the oven to 350°F (180ºC) and lightly grease a baking dish with nonstick cooking spray.

2. Cook the beef: Add the ground beef and diced onion to a large non-stick skillet. Season it to taste with salt and pepper. Break the ground beef apart as it cooks and cook until it browns on all sides.

3. Make the creamy filling: Add the cream cheese and half of the shredded cheddar cheese to the meat mixture. Mix everything until the cream cheese and cheddar cheese melt and everything is well combined. In a separate bowl, whisk the eggs and the heavy cream until combined.

4. Assemble the casserole: Transfer the ground beef mixture to the prepared casserole dish and top it with the egg-heavy cream mixture.

5. Bake the casserole: Top the casserole with the rest of the shredded cheese and bake it for 15-20 minutes or until the filling is set and the cheese is golden.

6. Make the copycat Big Mac sauce: Combine all of the Big Mac sauce ingredients in a bowl. Mix them well until you have a smooth and creamy special sauce. 

7. Top the casserole and serve: As soon as the casserole is baked, top it with the Big Mac sauce and a layer of shredded lettuce, dill pickles, and sesame seeds. Enjoy!

Tips To Make The Best Recipe

• Make this a big mac tater tot casserole. Just add a layer of frozen tater tots to the top of the casserole and increase the baking time until you have crispy tater tots that are golden brown.
• Use chopped pickles to top the casserole instead of slices. 
• Experiment with the toppings and add diced tomatoes, sliced onions, or bacon bits.
• Use thousand island dressing instead of the copycat big mac sauce to make it more convenient. 
• Swap the cheddar cheese with Colby jack cheese, Monterey jack cheese, provolone cheese, or even pepper jack cheese for a little spice.

How To Store Big Mac Casserole

In the fridge: Store any leftover Big Mac casserole filling in an airtight container and sauce in a separate container and keep them in the fridge for up to 4 days. The casserole is best stored without the lettuce, sauce, and pickles on top. 

In the freezer: Transfer the casserole filling to a freezer-safe bag or airtight container and freeze for about 3 months. The sauce will last in a freezer-safe jar for up to 6 months.

Reheating: Put the leftover casserole in a baking dish and warm it in the oven at 350°F for about 10 minutes. Add more time for the frozen casserole or let it thaw in the fridge overnight first. Thaw the frozen sauce in the fridge overnight. Top the baked big mac casserole with the lettuce, pickles, and special sauce.

FAQS About This Big Mac Casserole Recipe

What is big mac sauce made of?

Big Mac sauce is made of mayonnaise, sweet pickle relish, onion, French dressing or thousand island dressing, mustard, white vinegar, sugar, garlic powder, onion powder, salt, and paprika. 

What are the ingredients in the big mac burger?

A Big Mac burger is made with two ground beef patties, a slice of American cheese, shredded iceberg lettuce, onion, sliced pickles, and Big Mac sauce all between a sesame seed bun.

Can I make this big mac casserole ahead of time?

Yes! Just prepare the casserole up until baking and mix the big mac sauce ingredients and store them in separate airtight containers in the fridge. When you're ready to bake it the next day, top it with the shredded cheese and bake the casserole. Then top it with the lettuce and pickles and special sauce.

More Casserole Recipes

• Cowboy casserole
• Shipwreck casserole
• Pulled pork casserole
• Cheeseburger tater tot casserole
• Brenda Gantt casserole
• Cracker Barrel hashbrown casserole
• Hamburger hashbrown casserole