If you love the iconic flavors of a classic burger and crave something warm and cozy, you are going to adore this Big Mac Casserole Recipe. This dish brilliantly transforms all the beloved elements of a Big Mac into a comforting casserole that’s easy to make, packed with flavor, and perfect for feeding a crowd or enjoying as leftovers. It’s a fun twist that captures that nostalgic fast-food magic without the drive-thru line, bringing that delicious combination of seasoned beef, tangy sauce, melty cheese, crisp veggies, and a hint of sesame right to your kitchen table.

Ingredients You’ll Need
Gathering simple but carefully chosen ingredients is the secret to nailing this Big Mac Casserole Recipe. Each component delivers a unique burst of flavor or texture, making the finished dish a harmonious and satisfying meal that’s anything but ordinary.
- 1 lb ground beef: The hearty base that brings savory richness and protein to the casserole.
- 1 onion, diced: Adds a sweet and slightly sharp undertone that complements the beef perfectly.
- 1 cup shredded cheddar cheese: Melts beautifully for creamy, cheesy goodness atop the dish.
- 1 cup shredded lettuce: Offers a fresh, crisp contrast to the warm layers below.
- 1 cup diced pickles: Brings that signature tangy crunch that’s essential to the Big Mac experience.
- 1 cup diced tomatoes: Adds juiciness and a pop of color, balancing the richness.
- 1 cup diced onions: A second helping of onion adds extra sharpness and texture on top.
- 1/2 cup mayonnaise: Creates the creamy, rich “special sauce” feel that ties everything together.
- 1/4 cup ketchup: Sweet and tangy, it brings that familiar burger sauce character.
- 1/4 cup mustard: Adds a subtle bite that brightens the overall flavor.
- Salt and pepper to taste: Enhances and balances all the flavors.
- Sesame seeds for topping: The final touch that recalls the iconic sesame bun and adds a lovely crunch.
How to Make Big Mac Casserole Recipe
Step 1: Preheat and Prepare
Start by setting your oven to 350°F so it’s nicely warmed by the time you’re ready to bake. This step ensures even cooking and a perfectly melded casserole.
Step 2: Cook the Beef and Onions
In a skillet over medium heat, cook the ground beef and diced onion until the beef is thoroughly browned and the onions have softened. Drain off any excess fat to keep your casserole from becoming greasy while keeping all that savory flavor.
Step 3: Mix the Sauce and Beef
In a mixing bowl, combine the cooked beef and onions with mayonnaise, ketchup, and mustard. This blend mimics that famous Big Mac sauce, giving the dish its creamy, tangy personality.
Step 4: Layer the Base
Spread the beef and sauce mixture evenly into your baking dish. This foundation carries all the rich flavors and ensures every bite is satisfying.
Step 5: Add the Fresh Toppings
Sprinkle shredded cheddar cheese generously over the beef layer, then follow with shredded lettuce, diced pickles, tomatoes, and onions. Each topping adds fresh flavor and texture variance to the dish.
Step 6: Sesame Seed Sprinkle
Don’t forget to scatter sesame seeds on top. It might seem small, but it really pushes the Big Mac vibe, making it fun and familiar.
Step 7: Bake to Perfection
Place the casserole in your preheated oven and bake for 20-25 minutes. This gently melts the cheese, warms the veggies, and lets all the flavors meld into one irresistible dish.
Step 8: Serve and Enjoy
Once bubbling and golden on top, remove your Big Mac Casserole Recipe from the oven and serve immediately. It’s best hot to savor every comforting bite.
How to Serve Big Mac Casserole Recipe

Garnishes
To elevate your serving, add a little extra shredded lettuce or a few pickle slices right on top for freshness and that iconic crunch. A drizzle of ketchup or a dollop of extra mayo can also personalize it right at the table.
Side Dishes
Keep your sides simple but complementary with this casserole. Classic French fries or crispy oven-roasted potatoes bring out the burger essence. A light coleslaw or a crisp green salad adds brightness and balances out the richness.
Creative Ways to Present
For a fun gathering, serve this casserole in individual ramekins or mini cast iron skillets to recreate that personal burger experience. You can even layer it into a dip by scooping portions onto toasted buns as a sandwich topper for a playful twist.
Make Ahead and Storage
Storing Leftovers
Place any leftover Big Mac Casserole Recipe in an airtight container and refrigerate for up to 3 days. The flavors continue to develop, making your next meal just as tasty as the first.
Freezing
This casserole freezes well for up to 2 months. Be sure to cool completely before freezing in a freezer-safe container or wrap tightly in foil and plastic wrap to maintain freshness.
Reheating
Reheat leftovers in the oven at 350°F until warmed through, about 15-20 minutes. To avoid sogginess, avoid microwaving if possible, but if short on time, microwave in short intervals, stirring between, for even heating.
FAQs
Can I use ground turkey instead of ground beef?
Absolutely! Ground turkey makes a leaner option and will still absorb the flavors of the sauce beautifully, though the taste will be slightly milder than beef.
Is this recipe gluten-free?
Yes, the ingredients used are naturally gluten-free, but always check your condiments and toppings to ensure no hidden gluten is included.
Can I add cheese inside the beef mixture?
Yes, stirring some shredded cheese into the beef mixture before baking adds an extra layer of gooey cheesiness that’s delicious and indulgent.
What’s the best baking dish size for this recipe?
A 9×9 inch baking dish works perfectly for this amount of ingredients, allowing even layering and thorough cooking.
Can I make this casserole vegetarian?
To make a vegetarian version, swap the ground beef for hearty lentils or a plant-based crumbled meat, and adjust seasonings accordingly for a satisfying alternative.
Final Thoughts
This Big Mac Casserole Recipe is a fantastic way to bring a beloved classic into your home cooking, combining comfort and nostalgia in one delicious dish. It’s simple to prepare, fun to share, and guaranteed to please burger fans and casserole lovers alike. Give it a try and watch how quickly it becomes a family favorite!
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Big Mac Casserole Recipe
- Prep Time: 15 minutes
- Cook Time: 25 minutes
- Total Time: 40 minutes
- Yield: 6 servings
- Category: Main Course
- Method: Baking
- Cuisine: American
Description
A delicious and easy-to-make Big Mac Casserole that captures all the iconic flavors of the classic Big Mac sandwich in a comforting baked dish. Ground beef cooked with onions is combined with a tangy sauce, then layered with cheese, fresh veggies, and topped with sesame seeds before baking to perfection.
Ingredients
Meat and Veggies
- 1 lb ground beef
- 1 onion, diced
- 1 cup shredded lettuce
- 1 cup diced pickles
- 1 cup diced tomatoes
- 1 cup diced onions
Dressing and Toppings
- 1/2 cup mayonnaise
- 1/4 cup ketchup
- 1/4 cup mustard
- 1 cup shredded cheddar cheese
- Salt and pepper to taste
- Sesame seeds for topping
Instructions
- Preheat Oven: Preheat your oven to 350°F (175°C) to get it ready for baking the casserole.
- Cook Beef and Onion: In a skillet over medium heat, cook the ground beef together with the diced onion until the beef is browned and fully cooked. Drain off any excess fat to keep it from being greasy.
- Mix Sauced Beef: In a mixing bowl, combine the cooked beef and onion mixture with mayonnaise, ketchup, and mustard. Stir well until all ingredients are thoroughly incorporated.
- Assemble in Baking Dish: Spread the sauced beef mixture evenly into a baking dish to form the casserole base.
- Add Toppings: Layer the shredded cheddar cheese, followed by shredded lettuce, diced pickles, diced tomatoes, and diced onions evenly on top of the beef mixture.
- Add Sesame Seeds: Sprinkle sesame seeds evenly over the entire casserole for that classic Big Mac touch.
- Bake: Place the baking dish in the preheated oven and bake for 20-25 minutes, or until the casserole is heated through and the cheese has melted.
- Serve: Remove from oven, let it cool slightly, then serve hot and enjoy your Big Mac Casserole!
Notes
- You can substitute ground turkey or chicken for ground beef for a leaner option.
- For extra cheesiness, add more shredded cheddar on top before baking.
- Feel free to customize vegetables based on preference; add shredded carrots or onions.
- This casserole pairs well with a side salad or steamed vegetables.
- Leftovers can be stored in the refrigerator for up to 3 days and reheated in the oven or microwave.

