Big Mac Casserole

5 from 2 votes

This Big Mac Casserole is incredibly satisfying without the fast food run. This easy recipe turns your favorite burger and delivers it in a casserole form. Feed your family a delicious meal they will want over and over again, and it's ready in under an hour!

Prep Time30

Cook Time30

Total Time1

Course: Main Course

Cuisine: American

Servings: people

Calories: 539kcal

Author: Briana

Equipment

9x13 casserole dish
large skillet

Ingredients

Casserole

3 tablespoons avocado oil divided
3 medium red skin potatoes diced
3-4 teaspoons kosher salt to taste and divided
2 teaspoons garlic powder divided
1 teaspoon onion powder
¼ teaspoon smoked paprika optional
½ teaspoon black pepper divided
2 pounds ground beef 85% lean
1 large yellow onion diced
2 teaspoons Worcestershire sauce
3 tablespoons ketchup
2 tablespoons mustard
8 ounces cheddar cheese

Toppings

½ cup dill pickle slices
½ medium white onion minced
5 ounces lettuce chopped
5 ounces cherry tomatoes halved
½ tablespoon sesame seeds optional, for garnish
Big mac dressing optional
Ketchup & mustard for serving

Instructions

Preheat the oven to 425°F. In a 9x13-inch casserole dish, combine the potatoes with 1 tablespoon of avocado oil, 1.5 teaspoons of salt, 1 teaspoon of onion powder, 1 teaspoon of garlic powder, ¼ teaspoon of smoked paprika, and ¼ teaspoon of black pepper. Toss to combine and place in an even later on the bottom of the casserole dish, bake for 25 minutes while you work on the ground beef filling.
While the potatoes are cooking, heat a large skillet over medium heat. Add the remaining cooking oil along with the onion a pinch of salt. Cook until the onion is softened and translucent and beginning to brown, about 3-5 minutes.
Add in the beef and season with lots of salt, the remaining pepper, and 1 teaspoon of garlic powder. Cook until mostly brown and cooked through, then add in 3 tablespoons of ketchup, 2 tablespoons of mustard, and 2 teaspoons of Worcestershire sauce. Stir to combine. Adjust seasonings and remove from the heat.
When the potatoes are done, remove them from the oven, and drop the oven temperature to 375°F. Pour the cooked ground beef and onion mixture into the casserole dish. Toss the beef and potatoes together using a rubber spatula to ensure there is potato mixed in throughout the entire casserole.
Cover everything with the shredded cheddar cheese. Bake for 25-30 minutes, until the cheese is gooey and melted.
To serve, top with pickle slices, white onion, tomatoes, ketchup, mustard, sesame seeds, big mac dressing, and lettuce. Dig in!
Store leftovers in an airtight container in the fridge for up to 5 days. Reheat gently in the microwave. Only add the fresh toppings when serving, and leave them off if you plan to have leftovers, or they will become soggy.

Notes

Season the potatoes very well. Don’t forget to season the potato layers heavily to ensure the casserole is flavorful throughout.
Taste as you go and adjust seasonings. To ensure the casserole tastes good to your liking, taste as you go and adjust seasonings to suit your preference.

Nutrition