Creating this Low-Carb Bacon Cheeseburger Casserole is simple when you follow these easy steps:

1. Preheat the Oven: Preheat your oven to 350°F (175°C).

1. Cook the Bacon: In a skillet, cook the bacon over medium heat until crispy. Remove from the pan and place on paper towels to drain.

1. Brown the Beef: In the same skillet, add the diced onion and ground beef. Cook until the beef is browned and the onions are translucent. Drain excess grease if necessary.

1. Mix the Filling: In a large bowl, whisk together the eggs, heavy cream, Dijon mustard, garlic powder, paprika, salt, and pepper.

1. Combine: Add the cooked beef and onions to the egg mixture. Crumble the cooked bacon into the bowl, reserving some pieces for topping.

1. Add Cheese: Stir in 3/4 cup of shredded cheddar cheese, mixing well to combine all ingredients.

1. Transfer to Casserole Dish: Pour the mixture into a greased 9×13 inch casserole dish. Smooth the top with a spatula.

1. Bake: Place in the preheated oven and bake for 30-35 minutes or until the casserole is set and lightly golden on top.

1. Add Toppings: During the last 5 minutes of baking, sprinkle the remaining cheddar cheese and reserved bacon on top, allowing it to melt.

1. Cool and Serve: Once cooked, remove from the oven and let it cool for a few minutes before serving.