Easy Keto Cheeseburger Casserole (High Protein, Low Carb)

This Easy Keto Cheeseburger Casserole captures all the rich, comforting flavors of a classic bacon double cheeseburger—crispy ground beef, sharp cheddar, savory aromatics, and a tangy special sauce—baked into a satisfying, low-carb dish. It delivers 36 grams of protein per serving while keeping net carbs down to just 4 grams, making it an ideal choice for a busy weeknight meal prep or a comforting family dinner.

Prep Time 15 mins

Cook Time 25 mins

Total Time 40 mins

Servings 6 servings

Net Carbs 4g

Why This Recipe Works

• Structural Custard Base: Instead of relying on carb-heavy flour, pasta, or condensed soups, this casserole uses a whisked mixture of eggs, heavy cream, and cream cheese. When baked, it sets into a velvety custard that holds the ground beef together cleanly.
• Maximum Maillard Reaction: Searing the ground beef until deeply browned and draining excess rendered fat prevents the casserole from becoming soggy while maximizing savory flavor.
• Balanced Acidity: Dill pickle relish and yellow mustard cut through the richness of the beef and cheddar cheese, recreating the authentic taste profile of a diner cheeseburger.
• Meal Prep Friendly: Unlike recipes that rely on leafy greens or crispy shells, this casserole holds its structure extremely well when refrigerated and reheated, making it excellent for work lunches.

If you enjoy simple, protein-packed beef dinners, you might also like these high protein garlic butter steak bites or these high protein turkey burger bowls.

Ingredients You'll Need

• Lean Ground Beef (85/15 or 90/10): Provides the hearty, savory foundation. 85/15 offers ideal flavor; just ensure excess grease is drained so the egg binder sets properly.
• Bacon: Thick-cut bacon adds smoky crunch and depth.
• Yellow Onion & Fresh Garlic: Aromatic staples cooked directly in the beef fat for flavor depth.
• Sharp Cheddar Cheese: Sharp yellow cheddar delivers bold cheeseburger flavor. Split between the filling and the top layer for maximum melt.
• Cream Cheese: Softened cream cheese blends into the beef mixture to provide creaminess without liquid runoff.
• Large Eggs & Heavy Cream: Whisked together to act as a natural, keto-compliant binder that sets the casserole seamlessly.
• Tomato Paste, Yellow Mustard & Dill Pickles: The classic "special sauce" profile that gives the dish its unmistakable cheeseburger flavor.
• Spices: Garlic powder, onion powder, smoked paprika, salt, and black pepper.

How to Make Keto Cheeseburger Casserole

1. Prep & Cook the Bacon

Preheat your oven to 350°F (175°C) and lightly grease a 9x13-inch baking dish. In a large skillet over medium heat, cook 6 strips of chopped bacon until crispy (6–8 minutes). Remove with a slotted spoon and set aside on a paper towel-lined plate, leaving 1 tablespoon of bacon grease in the skillet.

2. Brown the Beef & Aromatics

Add 2 pounds of ground beef and 1 cup of finely diced yellow onion to the skillet. Cook over medium-high heat for 7–9 minutes, breaking up the meat until thoroughly browned. Stir in 3 cloves of minced garlic, 1 teaspoon garlic powder, 1 teaspoon onion powder, ½ teaspoon smoked paprika, 1 teaspoon salt, and ½ teaspoon black pepper. Cook for 1 minute until fragrant. Turn off heat and thoroughly drain rendered grease from the skillet.

3. Build the Beef Foundation

While the beef is still warm in the skillet off the heat, add 4 oz of softened cream cheese, 2 tablespoons tomato paste, 1 tablespoon yellow mustard, and ⅓ cup of dill pickle relish (or finely diced pickles). Stir thoroughly until the cream cheese melts into the warm beef, creating a creamy meat mixture. Transfer this mixture evenly into your prepared baking dish.

4. Whisk and Pour the Binder

In a medium bowl, whisk together 4 large eggs and ½ cup heavy whipping cream until completely smooth and uniform. Pour the egg mixture evenly over the beef in the baking dish, allowing it to sink into the gaps.

5. Top and Bake

Sprinkle 1.5 cups of shredded sharp cheddar cheese and the cooked crispy bacon evenly over the top. Bake uncovered at 350°F (175°C) for 22–25 minutes, or until the cheese is completely melted, bubbly, and light golden around the edges, and the center is set.

6. Rest and Serve

Remove from the oven and let rest for 5–10 minutes before slicing. Restings allows the egg-custard binder to firm up so slices hold their shape clean out of the pan. Garnish with additional chopped dill pickles or sliced green onions if desired.

Cooking Tips for Best Results

• Drain the Fat Thoroughly: Beef that retains too much fat will cause liquid pooling at the bottom of your baking dish. Drain fat well after browning.
• Softened Cream Cheese is Key: Ensure your cream cheese is completely soft at room temperature before stirring into the ground beef. Cold cream cheese will clump rather than create a smooth sauce.
• Shred Your Own Cheese: Pre-shredded bagged cheese is coated in potato starch or cellulose to prevent caking, adding unnecessary carbs and preventing a smooth melt. Shred a block of sharp cheddar fresh.

Storage, Meal Prep & Packing

This casserole is one of the most reliable high-protein meal prep options because the egg-cream binder prevents it from drying out upon reheating.

• Refrigeration: Allow the baked casserole to cool completely. Portion into airtight meal prep containers. Store in the refrigerator for up to 4–5 days.
• Work Lunch Reheating: Microwave individual portions on medium power (70%) for 1.5 to 2 minutes. Heating on medium power ensures the cheese remelts evenly without separating or becoming oily.
• Freezing: Slice cooked and cooled casserole into individual portions, wrap tightly in parchment paper, and seal in a freezer-safe bag for up to 2 months. Thaw overnight in the fridge before microwaving.
• Lunchbox Packing Tip: If packing for a work day, keep wet toppings like fresh sliced tomatoes, shredded lettuce, or extra pickle slices in a small separate container to add after reheating.

Frequently Asked Questions

Can I make this cheeseburger casserole ahead of time?

Yes. You can assemble the entire dish (beef layer, egg mixture, and cheese topping) in the baking dish, cover tightly with foil, and store in the refrigerator overnight. Bake straight from the fridge at 350°F (175°C), adding about 5–8 minutes to the baking time.

Why did my casserole turn out watery?

Excess moisture comes from two sources: not draining the ground beef fat adequately after browning, or using low-fat dairy options (like skim milk or low-fat cream cheese) which have a higher water content than heavy cream and full-fat cream cheese.

Can I substitute ground turkey or ground chicken?

Absolutely. 93/7 lean ground turkey works great. Since turkey is naturally leaner than beef, add 1 tablespoon of olive oil or butter when browning to keep the meat juicy.

Is tomato paste keto-friendly?

Yes, in small amounts. Using 2 tablespoons for an entire 6-serving casserole adds negligible carbs per serving while delivering classic cheeseburger flavor without added sugar ketchup.

Easy Keto Cheeseburger Casserole

A high-protein, low-carb dinner classic packed with real cheeseburger flavor.

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Prep: 15 mins

Cook: 25 mins

Total: 40 mins

Servings: 6

Calories: 510 kcal

Ingredients

• 2 lbs lean ground beef (85/15 or 90/10)
• 6 strips thick-cut bacon, chopped
• 1 cup yellow onion, finely diced
• 3 cloves garlic, minced
• 4 oz cream cheese, softened
• 2 tbsp tomato paste
• 1 tbsp yellow mustard
• ⅓ cup dill pickle relish (unsweetened)
• 1 tsp garlic powder
• 1 tsp onion powder
• ½ tsp smoked paprika
• 1 tsp salt
• ½ tsp black pepper
• 4 large eggs
• ½ cup heavy whipping cream
• 1.5 cups sharp cheddar cheese, freshly shredded

Instructions

1. Prep: Preheat oven to 350°F (175°C). Lightly grease a 9x13-inch baking dish.
2. Crisp Bacon: Fry chopped bacon in a large skillet over medium heat until crispy (6–8 mins). Remove bacon with a slotted spoon, leaving 1 tbsp grease in skillet.
3. Brown Meat: Add ground beef and diced onion to skillet. Cook 7–9 mins until meat is browned. Add garlic, garlic powder, onion powder, smoked paprika, salt, and pepper; cook 1 min. Remove skillet from heat and drain all excess grease completely.
4. Mix Base: Stir softened cream cheese, tomato paste, yellow mustard, and pickle relish directly into the warm beef until melted and creamy. Spread evenly into prepared baking dish.
5. Add Custard Binder: In a bowl, whisk eggs and heavy cream until smooth. Pour evenly over beef layer in the pan.
6. Top & Bake: Sprinkle shredded sharp cheddar and crispy bacon on top. Bake uncovered at 350°F (175°C) for 22–25 minutes until golden and center is set.
7. Rest: Cool for 5–10 minutes before slicing to allow casserole to firm up.

Estimated Nutrition (Per Serving)

Calories	Protein	Fat	Total Carbs	Fiber	Net Carbs	Sodium
510 kcal	36g	38g	5g	1g	4g	780mg

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