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This easy 30-minute keto cheeseburger casserole is hearty and filling and makes a wonderful low-carb alternative to a classic cheeseburger. You won’t miss the bun!

You can make this recipe as written and serve it with a side of veggies. Or you could add veggies such as cauliflower rice or spinach to turn it into a complete meal.

Keto cheeseburger casserole served in a white baking dish.

I really like casseroles. They’re just so EASY. You place a few ingredients in a baking dish, put it in the oven, and 30-60 minutes later, dinner is ready!

This casserole is so delicious, in a delightfully non-gourmet sort of way. Grownups and kids alike always enjoy it. You can make it as written, you can vary the spices you use, and you can add veggies.

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Like most casseroles, it’s a very forgiving and flexible recipe. See specific suggestions below.

Keto Cheeseburger Casserole

This easy keto cheeseburger casserole is filling and flavorful. It makes a wonderful low-carb alternative to a cheeseburger. 

INGREDIENTS

  • ▢Olive oil spray for the baking dish
  • ▢2 tablespoons olive oil
  • ▢2 lb. extra lean ground beef
  • ▢1 medium onion finely chopped (6 oz)
  • ▢2 teaspoons Diamond Crystal kosher salt or 1 teaspoon fine salt
  • ▢¼ teaspoon black pepper
  • ▢1 tablespoon minced fresh garlic
  • ▢¼ cup avocado oil mayonnaise
  • ▢¼ cup unsweetened ketchup
  • ▢1 tablespoon mustard
  • ▢1 ½ cup shredded sharp cheddar divided (6 oz)

INSTRUCTIONS

  • Preheat your oven to 400 degrees F. Spray a 2-quart baking dish with olive oil. 
  • Heat the olive oil in a large skillet over medium-high heat, for about 2 minutes. Add the beef and the onions. Cook, stirring to break up the beef until the meat is browned and the onion is soft, about 5 minutes. 
  • If there are liquids at the bottom of the skillet, carefully drain the mixture and return it to the skillet. 
  • Stir in the kosher salt, black pepper, and garlic. Cook, stirring, for 1 more minute.
  • Turn the heat off. Stir in the mayonnaise, unsweetened ketchup, mustard, and 1 cup of shredded cheddar. 
  • Transfer the mixture to the prepared baking dish. Sprinkle with the remaining cheese. 
  • Bake until the cheese is melted and the casserole is heated through, about 15 minutes. Or, if your baking dish is broiler-safe, broil the casserole 6 inches below the heating element (not directly below) until the cheese is melted, 1-2 minutes. 

WATCH THE VIDEO:

NOTES

If you’d like to turn this casserole into a complete meal, you can add 1-2 cups of uncooked riced cauliflower to the meat and onion and cook everything together. You might need to increase the olive oil a little if you do.

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By uvu44

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