Big Mac Casserole

If you’re a Big Mac fan but want something more budget-friendly, family-sized, and oven-baked, YOU’RE IN LUCK. This Big Mac Casserole recipe is everything you love about the iconic burger juicy beef, melty cheese, pickles, and that SECRET SAUCE in a cheesy, hearty casserole form. Plus, it’s EASY PEASY to make, and I promise your family will think you’re a kitchen genius.

Looking for more cheesy, comforting recipes to try? Check out Cajun Mac and Cheese for a spicy twist on a classic, or dig into Philly Cheesesteak Pasta for a hearty, flavor-packed lunch idea.

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Why You’ll Love This Big Mac Casserole

• Quick Prep: 20 MINUTES to get it in the oven!
• One-Pan Wonder: Fewer dishes = happier YOU.
• Family-Approved: Even the pickiest eaters will clean their plates.
• Customizable: Keto? Low-carb? You can tweak this dish to fit your needs.

When my HUSBAND made this for lunch one lazy Sunday, I had to ask, “Did you secretly grab takeout and sneak it into the casserole dish?” Because it was THAT GOOD. Let’s get you started on your new favorite meal!

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Ingredients You’ll Need For Big Mac Casserole

Here’s what you’ll need to bring this Big Mac dream to life:

For the Casserole

• 1 lb ground beef (80/20 works best for flavor!)
• 1 medium onion, finely chopped
• 2 cups shredded cheddar cheese
• 1 cup dill pickles, chopped (trust me, don’t skip this!)
• 1 tsp garlic powder
• 1 tsp onion powder
• ½ tsp salt
• ½ tsp black pepper

The Secret Sauce

• ½ cup mayonnaise
• 2 tbsp ketchup
• 2 tbsp mustard
• 1 tbsp white vinegar
• 1 tbsp dill pickle relish
• 1 tsp paprika
• 1 tsp sugar (optional for sweetness)

For the Topping

• 1 cup shredded lettuce (optional, for garnish)
• 1 cup diced tomatoes (optional, for extra freshness)
• Sesame seeds (to mimic that sesame bun vibe)

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How to Make Big Mac Casserole

This recipe is so easy, it’s actually foolproof. Ready? LET’S GO!

Preheat the Oven

Set your oven to 375°F then grease a 9×13 baking dish.

Cook the Ground Beef

In your skillet over medium heat, brown your ground beef with the onion, garlic powder, and onion powder. Drain the excess fat and season it  with salt and pepper.

Layer the Casserole

Spread the cooked beef mixture evenly in the bottom of your greased baking dish. Sprinkle the chopped pickles over the beef, then layer on shredded cheddar cheese.

Whip Up the Secret Sauce

In a bowl, mix mayo, ketchup, mustard, vinegar, pickle relish, paprika, and sugar until smooth. Pour HALF the sauce over the beef and cheese layers.

Bake It Up

Pop the casserole into your oven and bake for 20 minutes, or until the cheese is bubbly and golden.

Add the Finishing Touches

After baking, drizzle the remaining secret sauce on top. Sprinkle with shredded lettuce, diced tomatoes, and sesame seeds if desired.

Serve Big Mac Casserole

Slice, serve, and watch your family FREAK OUT over how good this is.

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Variations to Try

Want to switch it up? Check out these fun ideas:

• Keto-Friendly: Replace ketchup with sugar-free ketchup, and skip the tomatoes.
• Add Pasta: Toss in cooked macaroni for a Big Mac Pasta Casserole.
• Extra Crunch: Sprinkle crushed potato chips or croutons on top for a crispy texture.

When my SISTER-IN-LAW tried this with zoodles instead of ground beef (yep, vegetarian), she claimed it still tasted like a Big Mac. Magic!

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Pro Tips for Success

1. Choose Fresh Pickles: The tangier, the better.
2. Don’t Overcook the Beef: Keep it juicy, not dry.
3. Double the Sauce: Trust me—you’ll want extra for dipping.

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FAQs About Big Mac Casserole

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Next time you’re craving those iconic burger flavors but don’t feel like hitting the drive-thru, whip up this Big Mac Casserole instead. It’s a guaranteed WINNER for dinner, lunch, or even a potluck dish that’ll have everyone asking for the recipe.

Try it out and let me know how it turned out in the comments below. I’m betting your family will LOVE it as much as mine does!