This Keto Cheeseburger Casserole is a delightful dish that brings the classic flavors of a cheeseburger into an easy-to-make casserole. Perfect for family dinners or meal prep, this low-carb option is not only filling but also satisfies those comfort food cravings without the carbs. Its creamy texture and cheesy goodness make it a standout meal for any occasion.
Why You’ll Love This Recipe
- Quick and Easy: This casserole can be prepared in just 30 minutes, making it perfect for busy weeknights.
- Low-Carb Delight: With minimal carbs, this recipe fits perfectly into your keto lifestyle without sacrificing flavor.
- Family-Friendly: Everyone will love the taste! It’s a great way to introduce kids to healthier meals without them noticing.
- Versatile Ingredients: You can easily add or substitute ingredients to suit your taste or dietary needs.
- Make Ahead Option: Prepare it in advance and simply bake when you’re ready. It’s an excellent meal prep solution!
Tools and Preparation
Before diving into the cooking, gather your kitchen tools. Having everything ready makes the process seamless and enjoyable.
Essential Tools and Equipment
- Large skillet
- 2-quart baking dish
- Cooking spatula
- Measuring cups and spoons
Importance of Each Tool
- Large skillet: Ideal for browning ground beef quickly and evenly, ensuring all flavors blend beautifully.
- 2-quart baking dish: Perfect size for holding all ingredients together while allowing the cheese to melt perfectly.
Ingredients
This simple keto cheeseburger casserole is filling and hearty and makes a superb low-carb option to your cheeseburger.
For the Casserole
- 2 lbs extra lean ground beef
- 2 tsp coarse kosher salt (not fine salt)
- ¼ cup avocado oil mayonnaise
- ¼ tsp black pepper
- 1 tbsp minced garlic
- Olive oil spray for the baking dish
- ¼ cup unsweetened ketchup
- 1 medium onion (finely chopped, about 6 oz)
- 1 ½ cup shredded sharp cheddar (divided, about 6 oz)
- 2 tbsp olive oil
- 1 tbsp mustard
For Garnish
- 2 tablespoons fresh parsley, finely chopped

How to Make Keto Cheeseburger Casserole
Step 1: Preheat the Oven
Preheat your oven to 400°F. While it’s heating up, spray your 2-quart baking dish with olive oil to prevent sticking.
Step 2: Cook the Meat and Onions
In a large skillet, heat the olive oil over medium-high heat for about two minutes. Add the onions along with the ground beef.
– Cook while stirring regularly until the beef is browned and onions are tender, which takes around five minutes.
– Drain any excess liquid from your meat mixture before returning it to the skillet.
Step 3: Seasoning Time
Once drained, stir in black pepper, minced garlic, and kosher salt. Continue cooking while stirring for another couple of minutes until fragrant.
Step 4: Combine with Sauces
Turn off the heat. Mix in unsweetened ketchup, avocado oil mayonnaise, mustard, and one cup of shredded cheddar cheese until well combined.
Step 5: Transfer to Baking Dish
Pour the meat mixture into your prepared baking dish. Spread it evenly and sprinkle with the remaining cheddar cheese on top.
Step 6: Bake
Place in the oven and bake until cheese is melted and bubbly—this should take about 15 minutes.
Step 7: Broil Option (Optional)
If your baking dish is broiler-safe, you can also broil it instead. Place it six inches below the heating element for about one to two minutes until cheese is perfectly melted.
Now you have a delicious Keto Cheeseburger Casserole ready to serve! Enjoy this comforting dish that everyone will love!
How to Serve Keto Cheeseburger Casserole
Keto cheeseburger casserole is a versatile dish that can be enjoyed in various ways. Whether you want a quick meal or something to impress guests, these serving suggestions will elevate your dining experience.
With Fresh Salad
- Garden Salad: A light garden salad with mixed greens and tomatoes adds freshness.
- Caesar Salad: Pair with a keto-friendly Caesar salad for a creamy and crunchy contrast.
Topped with Avocado
- Sliced Avocado: Creamy avocado slices on top enhance flavor and nutrition.
- Guacamole: Serve with homemade guacamole for a zesty twist.
Accompanied by Low-Carb Breads
- Cloud Bread: Use cloud bread for a fluffy, low-carb side that complements the casserole.
- Cheese Crisps: Crunchy cheese crisps add texture and are perfect for dipping into the casserole.
How to Perfect Keto Cheeseburger Casserole
Creating the perfect keto cheeseburger casserole takes some attention to detail. Here are some tips to ensure your dish turns out delicious every time.
- Choose Lean Meat: Use extra lean ground beef to keep the dish healthy and low in calories.
- Season Generously: Don’t skimp on seasonings like garlic and pepper; they enhance the flavor significantly.
- Use Quality Cheese: Opt for sharp cheddar cheese for richer taste; it melts beautifully over the casserole.
- Don’t Overcook: Keep an eye on cooking time to prevent overcooking the beef, which could make it dry.
- Experiment with Toppings: Try different toppings like jalapeños or green onions for added flavor and crunch.

Best Side Dishes for Keto Cheeseburger Casserole
Pairing side dishes with your keto cheeseburger casserole can elevate the meal. Here are some excellent options that complement this hearty main course.
- Zucchini Fries: Crispy zucchini fries are a great low-carb alternative to traditional fries.
- Coleslaw: A tangy coleslaw provides crunch and acidity, balancing out the richness of the casserole.
- Roasted Brussels Sprouts: Seasoned and roasted Brussels sprouts add depth and flavor to your meal.
- Garlic Butter Mushrooms: Sautéed mushrooms in garlic butter pair well with cheeseburgers’ savory notes.
- Riced Cauliflower: Light and fluffy riced cauliflower serves as a great base under the casserole.
- Stuffed Peppers: Bell peppers stuffed with cheese or meat create a colorful, nutritious side dish.
Common Mistakes to Avoid
When making a Keto Cheeseburger Casserole, it’s easy to make some common errors. Here are a few mistakes to look out for:
- Using the wrong ground beef: Opt for extra lean ground beef. Fatty beef can make the casserole greasy and heavy.
- Skipping the seasoning: Don’t forget to season your beef properly. Add salt and pepper early in the cooking process for better flavor distribution.
- Overcooking the onions: Ensure you cook the onions just until tender. Overcooking them can lead to a mushy texture that doesn’t complement the dish.
- Not draining excess fat: Always drain any excess fat from the skillet after browning the meat. This prevents your casserole from becoming soggy.
- Ignoring cheese quality: Use sharp cheddar for a more robust flavor. Low-quality cheese can result in a bland casserole.
Refrigerator Storage
- Store leftovers in an airtight container.
- The casserole will last for 3-4 days in the refrigerator.
- Allow it to cool completely before sealing to avoid condensation.
Freezing Keto Cheeseburger Casserole
- You can freeze portions of the casserole for up to 2-3 months.
- Use freezer-safe containers or heavy-duty freezer bags.
- Label containers with the date for easy tracking.
Reheating Keto Cheeseburger Casserole
- Oven: Preheat your oven to 350°F and bake covered for about 15-20 minutes until heated through.
- Microwave: Place a portion in a microwave-safe dish and cover. Heat on medium power for 2-3 minutes, stirring halfway through.
- Stovetop: Heat in a skillet over medium heat, stirring occasionally until warmed through, about 5-7 minutes.

Frequently Asked Questions
What is Keto Cheeseburger Casserole?
Keto Cheeseburger Casserole is a low-carb dish that combines all the flavors of a classic cheeseburger but in a hearty casserole form. It’s perfect for those following a ketogenic diet.
Can I customize my Keto Cheeseburger Casserole?
Absolutely! You can add vegetables like bell peppers or mushrooms. You can also experiment with different cheeses or spices to suit your taste.
How do I know when my casserole is done?
The casserole is done when the cheese is melted and bubbly, usually around 15 minutes of baking time at 400°F.
Can I use ground turkey instead of beef?
Yes, ground turkey works well as a lean alternative. Just remember it may have a different flavor profile than traditional beef.
Is this recipe suitable for meal prep?
Yes! Keto Cheeseburger Casserole is great for meal prep since it stores well and reheats easily, making it perfect for busy weeknights.
Final Thoughts
This Keto Cheeseburger Casserole is not only filling but also versatile, allowing you to customize it according to your preferences. Whether you’re sticking strictly to keto or just looking for a healthier option, this dish is sure to satisfy your cravings. Give it a try and enjoy its rich flavors while exploring various ingredient combinations!
Keto Cheeseburger Casserole
Indulge in the flavors of a classic cheeseburger with this easy-to-make Keto Cheeseburger Casserole. This comforting dish combines juicy ground beef, creamy sauces, and melty cheddar cheese to create a satisfying low-carb meal perfect for family dinners or meal prep. Ready in just 30 minutes, it’s a quick solution for busy weeknights that will leave everyone asking for seconds. Packed with nutritious ingredients and customizable to fit your taste, this casserole is not only delicious but also a smart choice for those following a ketogenic lifestyle. Serve it alongside fresh salads or low-carb sides to elevate your dining experience.
- Prep Time: 10 minutes
- Cook Time: 20 minutes
- Total Time: 30 minutes
- Yield: Approximately 8 servings 1x
- Category: Main
- Method: Baking
- Cuisine: American
Ingredients
- 2 lbs extra lean ground beef
- ¼ cup avocado oil mayonnaise
- 1 medium onion (finely chopped)
- 1 ½ cups shredded sharp cheddar cheese
- ¼ cup unsweetened ketchup
- 1 tbsp mustard
- 2 tsp coarse kosher salt
- Black pepper to taste
Instructions
- Preheat your oven to 400°F and spray a 2-quart baking dish with olive oil.
- In a large skillet, heat olive oil over medium-high heat. Add chopped onions and ground beef, cooking until browned (about 5 minutes). Drain excess fat.
- Stir in garlic, salt, and black pepper; cook until fragrant.
- Remove from heat and mix in mayonnaise, ketchup, mustard, and one cup of cheddar cheese until combined.
- Transfer the mixture into the prepared baking dish and top with remaining cheddar cheese.
- Bake for about 15 minutes until cheese is melted and bubbly.
Nutrition
- Serving Size: 1 serving
- Calories: 350
- Sugar: 2g
- Sodium: 650mg
- Fat: 25g
- Saturated Fat: 10g
- Unsaturated Fat: 13g
- Trans Fat: 0g
- Carbohydrates: 7g
- Fiber: 2g
- Protein: 28g
- Cholesterol: 70mg
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