
Big Mac Casserole
So you know how sometimes you’re craving that classic Big Mac taste but don’t feel like hitting the drive-thru? Well, I took all those iconic flavors—the seasoned beef, special sauce, pickles, onions, and even that middle bun layer—and turned them into a ridiculously satisfying casserole. It’s basically the fast food classic deconstructed into a warm, gooey, crowd-pleasing dish that tastes eerily like the real thing. My kids go absolutely nuts for this, and honestly? It’s become our guilty pleasure Sunday night dinner.
Why You’ll Love This Recipe
- Quick and Easy: This Big Mac Casserole comes together in no time, making it perfect for busy weeknights or last-minute gatherings.
- Family-Friendly: With all the familiar flavors of a Big Mac, even picky eaters will be asking for seconds!
- Versatile: Serve it as a comforting dinner or bring it to potlucks; it’s sure to impress your guests.
- Customizable: Feel free to add or substitute ingredients based on your taste preferences—make it your own!
- Leftover Friendly: This casserole keeps well in the fridge and can be easily reheated for delicious leftovers.
Tools and Preparation
Before starting with your Big Mac Casserole, gather your tools. Having everything ready will make the cooking process smooth and enjoyable.
Essential Tools and Equipment
- Large skillet
- Mixing bowl
- Baking dish (9×13 inches recommended)
- Spatula
- Measuring cups and spoons
Importance of Each Tool
- Large skillet: Essential for browning the ground beef evenly and combining flavors effectively.
- Mixing bowl: Perfect for preparing the special sauce and mixing ingredients without any mess.
- Baking dish: A good quality baking dish ensures even cooking and easy serving of your casserole.

Ingredients
- 2 lbs ground beef (I use 80/20 for that authentic fast food flavor)
- 1 medium onion, finely diced (about 1 cup)
- 3 cloves garlic, minced (or more, I won’t judge)
- 2 tablespoons Worcestershire sauce
- 1 tablespoon yellow mustard
- 1 teaspoon salt
- 1/2 teaspoon black pepper
- 1 teaspoon garlic powder
- 1 teaspoon onion powder
- 6 chicken hamburger buns, torn into bite-sized pieces (stale ones actually work better!)
- 2 tablespoons butter, melted
- 1 teaspoon sesame seeds
- 1/2 teaspoon garlic powder
- 1 cup mayonnaise (full fat is best here)
- 1/4 cup ketchup
- 2 tablespoons sweet pickle relish (the secret ingredient!)
- 1 tablespoon yellow mustard
- 1 tablespoon white vinegar
- 1 teaspoon sugar
- 1 teaspoon paprika
- 1/2 teaspoon garlic powder
- 1/2 teaspoon onion powder
- 2 cups shredded cheddar cheese (the orange kind for that classic look)
- 1 cup shredded lettuce
- 1/2 cup dill pickles, chopped
- 1/4 cup diced onion
- 8 slices American cheese (yes, the plastic-wrapped kind)
How to Make Big Mac Casserole
Step 1: Preheat the Oven
Preheat your oven to 350°F (175°C). This ensures your casserole bakes evenly.
Step 2: Cook the Beef Mixture
In a large skillet over medium heat:
* Add the ground beef and cook until browned.
* Drain any excess fat.
* Stir in diced onion and minced garlic; cook until softened.
Step 3: Add Seasonings
To the skillet with cooked beef:
* Add Worcestershire sauce, yellow mustard, salt, black pepper, garlic powder, and onion powder.
* Mix well to combine all flavors.
Step 4: Prepare the Bun Layer
In a mixing bowl:
* Combine torn chicken hamburger buns with melted butter.
* Stir in sesame seeds until evenly coated.
Step 5: Assemble the Casserole
In a greased baking dish:
* Layer half of the bun mixture on the bottom.
* Spoon half of the beef mixture over it.
* Spread half of the sauce made from mayonnaise, ketchup, pickle relish, yellow mustard, white vinegar, sugar, paprika, garlic powder, and onion powder.
Step 6: Add Cheese Toppings
Top with:
* Shredded cheddar cheese,
* Remaining beef mixture,
* Remaining bun mixture,
* American cheese slices on top.
Step 7: Bake
Cover with foil and bake for 25 minutes. Then remove foil and bake an additional 10 minutes, until cheese is bubbly and golden.
Step 8: Serve Hot
Let cool slightly before serving. Top with shredded lettuce, dill pickles, and diced onion as garnishes. Enjoy your delightful Big Mac Casserole!
How to Serve Big Mac Casserole
Serving Big Mac Casserole is all about enhancing that iconic flavor while making it a fun and interactive meal. Whether it’s for a family dinner or a casual gathering, here are some creative serving suggestions.
With Extra Special Sauce
- Mix up a batch of the special sauce from the casserole recipe and serve it on the side for dipping. This adds an extra layer of flavor that everyone will love!
Topped with Fresh Lettuce
- Add a handful of shredded lettuce on top right before serving. This gives a nice crunch and mimics the classic Big Mac experience.
Accompanied by Dill Pickles
- Serve slices of dill pickles on the side. They provide a tangy crunch that complements the casserole wonderfully.
With Homemade French Fries
- Pair it with crispy homemade French fries for a complete fast-food experience at home. Just season them with your favorite spices for added flavor.
In Individual Portions
- Bake the casserole in small ramekins for individual servings. This makes it easy to serve and adds a personal touch to each plate.
With Tomato Slices
- Place fresh tomato slices on top or on the side. Their juiciness balances out the richness of the cheese and beef.
How to Perfect Big Mac Casserole
Perfecting your Big Mac Casserole comes down to attention to detail and using quality ingredients. Here are some tips to elevate your dish:
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Use Quality Beef: Choose ground beef with appropriate fat content (80/20) for optimal flavor and juiciness.
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Stale Buns Work Best: Using slightly stale hamburger buns helps them absorb moisture without becoming mushy.
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Don’t Skip the Special Sauce: The sauce is key to achieving that authentic Big Mac taste, so make sure to mix it well.
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Layer Ingredients Wisely: Spread ingredients evenly in layers for consistent flavor in every bite.
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Allow Resting Time: Let the casserole sit for about 10 minutes after baking before serving. This helps it set up nicely.
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Experiment with Cheese: While cheddar is traditional, feel free to mix in other cheeses like mozzarella for different flavors.
Best Side Dishes for Big Mac Casserole
To round out your meal, consider these delicious side dishes that pair perfectly with Big Mac Casserole:
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Garlic Bread: Toasted garlic bread provides a crunchy, flavorful addition that complements the casserole beautifully.
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Coleslaw: A creamy coleslaw adds freshness and crunch, balancing the richness of the casserole.
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Roasted Vegetables: Seasonal roasted vegetables offer a healthy side option that contrasts nicely with the hearty casserole.
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Corn on the Cob: Sweet corn on the cob brings a delightful sweetness that pairs well with savory flavors.
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Potato Salad: Creamy potato salad is a classic choice that provides a cool contrast to warm casseroles.
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Caesar Salad: A light Caesar salad can add some crispness and acidity, perfect for cutting through richer flavors.
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Sweet Potato Fries: They provide a sweet contrast and are easy to prepare alongside your casserole for an extra treat.
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Fruit Salad: A refreshing fruit salad offers a sweet finish, perfect after enjoying such a hearty main dish.
Common Mistakes to Avoid
When making your Big Mac Casserole, avoiding common pitfalls will help you achieve the best results.
- Using fresh buns: Fresh hamburger buns can become too soggy in the casserole. Opt for stale buns or toast them slightly before use.
- Overcooking the beef: To keep your casserole juicy, avoid overcooking the ground beef. Cook until just browned, as it will continue cooking in the oven.
- Ignoring seasoning: Don’t skip on seasoning the beef. Proper seasoning enhances flavor and brings out that classic Big Mac taste.
- Skipping the special sauce: The special sauce is crucial for authenticity! Be sure to mix it well and adjust ingredients to taste.
- Not layering properly: Layering ingredients is key to even flavor distribution. Follow the recipe for optimal results.

Storage & Reheating Instructions
Refrigerator Storage
- Store your leftover Big Mac Casserole in an airtight container.
- It can last in the fridge for up to 3 days.
Freezing Big Mac Casserole
- For longer storage, freeze portions in freezer-safe containers or bags.
- It can be stored in the freezer for up to 2 months.
Reheating Big Mac Casserole
- Oven: Preheat to 350°F (175°C) and bake covered for about 20 minutes or until heated through.
- Microwave: Heat individual portions on high for about 2-3 minutes, checking frequently.
- Stovetop: Reheat gently on low heat in a skillet, stirring occasionally until warmed through.
Frequently Asked Questions
What is Big Mac Casserole?
Big Mac Casserole is a deconstructed version of the classic fast-food burger, combining seasoned ground beef, special sauce, and all your favorite toppings into a hearty dish.
Can I customize my Big Mac Casserole?
Absolutely! Feel free to add other toppings like tomatoes or swap cheeses based on what you have at home.
How do I make Big Mac Casserole vegetarian?
You can substitute ground beef with plant-based meat alternatives and ensure all sauces are plant-based as well.
How long does it take to prepare Big Mac Casserole?
Preparation takes about 30 minutes, followed by baking time of around 30-35 minutes, so plan for about an hour total.
Is there a way to spice up my casserole?
For extra kick, consider adding jalapeños or a bit of hot sauce to the meat mixture before assembling your casserole.
Final Thoughts
The Big Mac Casserole offers all the delicious flavors of a classic burger in a comforting dish that’s perfect for family dinners. Its versatility allows you to customize ingredients based on personal preferences. Don’t hesitate to give it a try—your weeknight meals might never be the same!

Big Mac Casserole
- Total Time: 1 hour 5 minutes
- Yield: Serves approximately eight people 1x
Description
Experience the mouthwatering flavors of a classic burger in this easy-to-make Big Mac Casserole. Try it tonight for a satisfying family meal!
Ingredients
- 2 lbs ground beef (80/20)
- 1 medium onion, finely diced
- 3 cloves garlic, minced
- 6 chicken hamburger buns, torn into pieces
- 1 cup mayonnaise
- 1/4 cup ketchup
- 2 cups shredded cheddar cheese
- Dill pickles, chopped
Instructions
- Preheat your oven to 350°F (175°C).
- In a large skillet over medium heat, brown the ground beef with diced onion and minced garlic until softened. Drain excess fat and season with Worcestershire sauce, mustard, salt, black pepper, garlic powder, and onion powder.
- In a mixing bowl, combine torn hamburger buns with melted butter and sesame seeds.
- In a greased baking dish, layer half of the bun mixture at the bottom, followed by half of the beef mixture and half of the special sauce made from mayonnaise, ketchup, relish, mustard, vinegar, sugar, paprika, garlic powder, and onion powder.
- Repeat layers with remaining ingredients ending with American cheese slices on top.
- Cover with foil and bake for 25 minutes; remove foil and bake an additional 10 minutes until cheese is bubbly.
- Let cool slightly before serving with shredded lettuce and chopped dill pickles.
- Prep Time: 30 minutes
- Cook Time: 35 minutes
- Category: Dinner
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 serving
- Calories: 450
- Sugar: 5g
- Sodium: 800mg
- Fat: 28g
- Saturated Fat: 12g
- Unsaturated Fat: 15g
- Trans Fat: 0g
- Carbohydrates: 30g
- Fiber: 2g
- Protein: 22g
- Cholesterol: 85mg
Keywords: Stale hamburger buns work best as they absorb moisture without getting mushy. Feel free to customize toppings or use different cheeses based on preference. Store leftovers in an airtight container for up to 3 days in the refrigerator or freeze for up to 2 months.