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Keto Bacon Cheeseburger Casserole

When the craving for a big, juicy cheeseburger hits but we’re staying low-carb, this casserole is our go-to fix. It’s everything we love about a classic bacon cheeseburger, but reimagined into a cozy, bake-and-serve dinner that satisfies without the bun.

This casserole is layered with savory seasoned ground beef, rich cheddar cheese, and crispy bits of bacon—and the real magic happens when we pour over a creamy mustard-spiked egg custard that bakes into the meat like a soft, fluffy binder. It gives the whole dish a golden, slightly tangy finish that pulls all the burger flavors together.

Perfect for busy weeknights or weekend meal prep, this one always earns a spot in our dinner rotation. It’s easy, satisfying, and guaranteed to win over both keto folks and carb lovers alike.

Cuisine
Courses , ,
Difficulty Beginner
Time
Prep Time: 10 mins Cook Time: 25 mins Rest Time: 5 mins Total Time: 40 mins
Servings 6
Calories 390
Description

This layered casserole hits all the cheeseburger cravings—juicy ground beef, crispy bacon, melted cheddar, and a creamy mustard egg custard to tie it all together. It’s indulgent, hearty, and perfectly keto-friendly comfort food.

Ingredients
    For the Casserole Base:
  • 1 lb ground beef (80/20 for richness)
  • 1/2 medium onion, diced
  • 1 tsp garlic powder
  • 1/2 tsp salt
  • 1/2 tsp black pepper
  • 6 slices bacon, cooked and chopped
  • 1 cup shredded cheddar cheese
    • For the Custard:
  • 4 large eggs
  • 1/4 cup heavy cream
  • 2 tbsp yellow mustard (or Dijon for more tang)
  • 1 tbsp tomato paste or sugar-free ketchup (optional for burger vibes)
  • Salt & pepper, to taste
    • Optional Garnishes:
  • Chopped pickles or jalapeños
  • Extra shredded cheese on top
  • Fresh parsley for color
Instructions
    Prepare the Casserole Base:
  1. Preheat the oven to 375°F and grease a baking dish (8x8 or similar).
  2. In a skillet, cook the ground beef and diced onion over medium heat until the meat is browned and the onions are soft.
  3. Season with garlic powder, salt, and pepper. Drain excess grease if needed.
  4. Stir in the chopped cooked bacon and half of the shredded cheese.
  5. Transfer the beef mixture into the prepared baking dish and spread evenly.
    6. Mix the Custard:
  6. In a bowl, whisk together the eggs, heavy cream, mustard, and tomato paste (if using).
  7. Season with a pinch of salt and pepper.
  8. Pour the custard over the beef mixture in the dish.
    9. Top & Bake:
  9. Sprinkle the remaining cheese on top of the casserole.
  10. Bake for 20–25 minutes, or until the egg custard is set and the top is golden and bubbling.
  11. Let rest for 5 minutes before serving.

Nutrition Facts

Servings: 6 ServingCalories:390kcalTotal Fat:32gSaturated Fat: 13gTotal Carbohydrate:3gDietary Fiber: 0gSugars: 1gProtein:24g

Note

Substitutions & Variations

  • Dairy-Free: Use a dairy-free cheese alternative and coconut cream instead of heavy cream.
  • Add Veggies: Stir in some diced mushrooms or spinach with the beef for more nutrients.
  • Spicy Kick: Add hot sauce or diced jalapeños to the beef or custard mixture.
  • Burger Bar Style: Serve with chopped pickles, shredded lettuce, and tomato on the side.
Read it online: https://ketoeatsrecipes.com/recipe/keto-bacon-cheeseburger-casserole-2/