Big Mac Casserole Recipe (Cheesy and Easy)

Craving all the flavors of a McDonald’s Big Mac but want them in a warm, cheesy comfort dish? This Big Mac casserole has everything you love—crispy hash brown patties, seasoned ground beef, creamy “special sauce,” melted cheese, lettuce, and pickles. It’s like your favorite fast-food burger turned into a cozy family dinner.

Ingredients

(Serves 8)

  • 8 frozen hash brown patties
  • 1 onion (half grated, half chopped)
  • 1 cup mayonnaise
  • 2 teaspoons kosher salt, divided
  • 2 tablespoons sweet pickle relish
  • 2 teaspoons white vinegar
  • 2 teaspoons sugar
  • 2 teaspoons yellow mustard
  • 1 ½ teaspoons paprika
  • 1 teaspoon onion powder
  • 1 tablespoon olive oil
  • 1 ¼ pounds ground beef sirloin
  • 1 teaspoon black pepper
  • 2 teaspoons Worcestershire sauce
  • 8 ounces cheddar cheese, shredded (about 2 cups, divided)
  • 2 teaspoons sesame seeds
  • 3 cups shredded iceberg lettuce
  • ½ cup dill pickles, chopped

Step-by-Step Directions

Step 1: Gather Ingredients and Preheat Oven

Place all ingredients on your counter so they’re ready to use. Preheat your oven to 400°F (200°C) to prepare for baking.

Step 2: Arrange the Hash Browns

Lay the frozen hash brown patties in a single layer across the bottom of a 9×13-inch baking dish, making sure the surface is fully covered.

Step 3: Bake Until Golden and Crisp

Put the dish into the preheated oven and bake until the patties are golden brown on the bottom and slightly crispy, about 25 minutes.

Step 4: Prepare the Onion

While the hash browns bake, grate about 2 tablespoons of onion and keep the juice. Dice the rest of the onion into small cubes and set both aside.

Step 5: Mix the Special Sauce

In a medium bowl, combine the grated onion and its juice with mayonnaise, ½ teaspoon salt, sweet pickle relish, vinegar, sugar, mustard, paprika, and onion powder. Stir until you get a creamy sauce and set aside.

Step 6: Brown the Ground Beef

Heat olive oil in a large skillet over medium-high heat. Add the ground beef and let it cook undisturbed for 3 minutes. Break up the meat with a spoon and cook for another 5 minutes until browned. Season with the remaining salt, black pepper, Worcestershire sauce, and the diced onion. Stir and cook for 1 more minute.

Step 7: Blend Beef with Sauce and Cheese

Remove the skillet from heat. Add about ⅔ cup of the sauce and 1 ⅓ cups of shredded cheddar cheese. Stir until the beef mixture is creamy and the cheese begins to melt.

Step 8: Assemble the Casserole

Flip the baked hash browns so the crispy side faces upward. Spread the beef mixture evenly over the patties. Sprinkle with the remaining cheese and sesame seeds. Bake for 10–12 minutes, until the cheese is fully melted and bubbling.

Step 9: Add Fresh Toppings and Serve

Let the casserole rest for 5 minutes after baking. Add shredded lettuce on top, drizzle with the leftover sauce, and sprinkle with chopped pickles before serving warm.

Nutrition (per serving)

  • Calories: 569
  • Fat: 44g
  • Carbs: 15g
  • Protein: 28g

FAQs About Big Mac Casserole

1. Can I make a Big Mac casserole ahead of time?

Yes! Assemble the casserole up to the baking step, cover tightly, and refrigerate for up to 24 hours. Bake when ready, then add fresh toppings before serving.

2. How do I store leftovers?

Store cooled leftovers in an airtight container in the fridge for up to 3 days. Reheat in the oven at 350°F or in the microwave.

3. Can I freeze this casserole?

Yes, but freeze without the lettuce and pickles. Wrap tightly in foil and freeze for up to 2 months. Thaw overnight in the fridge before reheating.

4. What can I serve with a Big Mac casserole?

It’s a complete meal on its own, but you can pair it with oven fries, a fresh side salad, or roasted vegetables for a balanced dinner.

Conclusion

This homemade Big Mac casserole is the ultimate comfort food that captures everything you love about the famous burger—without the drive-thru. It’s easy, cheesy, and guaranteed to be a crowd-pleaser at your dinner table. Try it once, and it might just become a regular in your meal rotation!