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Keto Cheeseburger Casserole

Keto Cheeseburger Casserole

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Keto Cheeseburger Casserole is a delightful twist on the classic cheeseburger, bringing all the savory flavors you love into a hearty casserole that’s perfect for busy weeknights or gatherings. This quick and easy recipe takes only 30 minutes from start to finish, making it ideal for those seeking low-carb meals without sacrificing taste. Featuring tender ground beef, melty cheddar cheese, and a medley of zesty seasonings, this dish is satisfying and full of flavor. Whether served alone or alongside a fresh salad, this casserole is sure to please everyone at the table.

Ingredients

Scale
  • 2 tablespoons olive oil
  • 2 pounds extra-lean ground beef
  • 1 medium onion (finely chopped; 6 ounces)
  • 2 teaspoons Diamond Crystal kosher salt
  • 1/4 teaspoon black pepper
  • 1 tablespoon garlic (minced)
  • 1/4 cup mayonnaise
  • 1/4 cup unsweetened ketchup
  • 1 tablespoon mustard
  • 1 1/2 cup cheddar (sharp, shredded, divided; 6 ounces total)

Instructions

  1. Preheat oven to 400°F and lightly grease a 2-quart baking dish.
  2. In a large skillet, heat olive oil over medium-high heat for about 2 minutes. Add ground beef and chopped onion; cook until browned (about 5 minutes). Drain excess liquid if necessary.
  3. Stir in kosher salt, black pepper, and minced garlic; cook for an additional minute.
  4. Remove from heat and mix in mayonnaise, ketchup, mustard, and 1 cup of cheddar until well combined.
  5. Transfer mixture to the prepared baking dish and top with remaining cheese.
  6. Bake for 15 minutes or broil for 1-2 minutes until cheese is bubbly.

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