This Keto Cheeseburger Casserole is a delightful twist on the classic cheeseburger, delivering all the flavor without the carbs. Perfect for busy weeknights or a cozy family dinner, this dish will satisfy your cravings while keeping you on track with your keto lifestyle. It’s hearty and filling, making it an excellent option for meal prep too. Enjoy the rich flavors of ground beef, melted cheese, and zesty condiments all in one easy-to-make casserole.
Why You’ll Love This Recipe
- Quick and Easy: With a total time of just 30 minutes, you can whip up this delicious meal in no time.
- Low-Carb Delight: Perfect for those following a keto diet, this casserole offers all the comforts of a cheeseburger without the carbs.
- Flavorful Ingredients: Packed with savory ground beef, sharp cheddar cheese, and tangy condiments that elevate every bite.
- Family-Friendly: Even picky eaters will love this cheesy, satisfying dish that brings everyone to the table.
- Meal Prep Friendly: Make it ahead of time for easy lunches or dinners throughout the week.
Tools and Preparation
Before you start making your delicious Keto Cheeseburger Casserole, gather your essential tools. Having everything ready helps streamline the cooking process.
Essential Tools and Equipment
- Cast iron skillet
- 2-quart baking dish
- Mixing spoon
- Measuring cups and spoons
- Olive oil spray
Importance of Each Tool
- Cast iron skillet: Retains heat well for even cooking of meat and ensures great flavor development.
- Baking dish: Provides the perfect size for this casserole to bake evenly and hold all ingredients together.
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 a 2-quart baking dish with olive oil to prevent sticking.
Step 2: Cook the Beef and Onions
In a large skillet over medium-high heat, add olive oil. Heat for about 2 minutes before adding finely chopped onions and ground beef.
Step 3: Brown the Mixture
Cook while stirring to break up the beef until browned and onions are tender—approximately 5 minutes. Drain excess fluid from the skillet before returning it to the heat.
Step 4: Seasoning
Stir in black pepper, minced garlic, and kosher salt. Continue cooking for a few more minutes until well combined.
Step 5: Combine Sauce Ingredients
Turn off the heat. Mix in unsweetened ketchup, mayonnaise, mustard, and 1 cup of shredded cheddar cheese until fully blended.
Step 6: Transfer to Baking Dish
Pour the beef mixture into your prepared baking dish. Spread evenly and sprinkle with remaining cheese on top.
Step 7: Bake
Place in preheated oven and bake for about 15 minutes or until cheese is melted and casserole is heated through.
Step 8: Optional Broiling
If your baking dish is safe for broiling, position it about six inches below the heating element. Broil for an additional 1-2 minutes until cheese bubbles nicely.
Now enjoy your delicious Keto Cheeseburger Casserole!
How to Serve Keto Cheeseburger Casserole
This Keto Cheeseburger Casserole is not only delicious but also versatile in how you can serve it. Whether you’re hosting a gathering or enjoying a family dinner, these serving suggestions will enhance your meal experience.
With Fresh Greens
- Salad: Pair the casserole with a fresh garden salad for a refreshing contrast. Use mixed greens, cherry tomatoes, and a light vinaigrette.
- Coleslaw: A crunchy coleslaw adds texture and tang. Opt for a low-carb dressing to keep it keto-friendly.
Toppings Galore
- Sour Cream: A dollop of sour cream can add creaminess and richness.
- Avocado Slices: Fresh avocado provides healthy fats and a creamy texture that complements the casserole perfectly.
Bread Alternatives
- Keto Buns: Serve the casserole over keto burger buns for a fun twist on traditional cheeseburgers.
- Cauliflower Rice: For a low-carb grain substitute, serve it on a bed of cauliflower rice.
How to Perfect Keto Cheeseburger Casserole
Perfecting your Keto Cheeseburger Casserole can elevate the dish to new heights. Follow these tips to ensure your casserole is always a hit.
- Bold flavors: Use quality spices and seasonings to enhance the beef’s taste. A little extra garlic or onion powder can go a long way.
- Quality meat: Choose extra lean ground beef for better flavor without excess fat. This helps maintain the dish’s overall texture.
- Cheese variety: Experiment with different cheeses like pepper jack or gouda for added flavor depth and creaminess.
- Texture matters: Ensure you properly drain excess fluid from the beef mixture before baking. This prevents a soggy casserole.
- Broil for perfection: For an irresistible cheesy crust, broil the casserole at the end of baking. Just keep an eye on it to avoid burning!

Best Side Dishes for Keto Cheeseburger Casserole
Pairing side dishes with your Keto Cheeseburger Casserole can make your meal even more satisfying. Here are some excellent options that complement this hearty dish well.
- Zucchini Fries: Crispy baked zucchini fries offer crunch without the carbs.
- Garlic Butter Asparagus: Tender asparagus sautéed in garlic butter brings vibrant color and flavor.
- Cauliflower Mash: Creamy cauliflower mash is a great alternative to traditional mashed potatoes.
- Roasted Brussels Sprouts: These sprouts roasted until caramelized provide a nutty flavor that pairs perfectly.
- Pickled Vegetables: Add some tangy pickled veggies for brightness and acidity that cuts through the richness of the casserole.
- Stuffed Mushrooms: Savory stuffed mushrooms filled with cheese and herbs make an excellent finger food option alongside your meal.
Common Mistakes to Avoid
When making your Keto Cheeseburger Casserole, avoiding common mistakes can help ensure a delicious outcome. Here are some pitfalls to watch for:
- Using the wrong ground beef: Selecting fatty ground beef can make your casserole greasy. Opt for extra lean ground beef for a healthier dish.
- Ignoring the onion: Leaving out or skimping on the onion can lead to a lack of flavor. Always finely chop the onion and sauté it with the meat for maximum taste.
- Overcooking the cheese: Baking too long can result in burnt cheese. Keep an eye on it and remove once it’s melted and bubbly.
- Skipping seasonings: Neglecting spices like black pepper or garlic will dull the flavors. Make sure to measure and add them for a full-bodied taste.
- Not draining excess liquid: Failing to drain the skillet after cooking can make your casserole soggy. Always drain any excess liquid before mixing in other ingredients.
Storage & Reheating Instructions
Refrigerator Storage
- Store leftovers in an airtight container for up to 3 days.
- Allow the casserole to cool completely before sealing to prevent condensation.
Freezing Keto Cheeseburger Casserole
- Freeze in an airtight container or freezer bag for up to 3 months.
- Label containers with the date and contents for easy identification later.
Reheating Keto Cheeseburger Casserole
- Oven: Preheat oven to 350°F and cover with foil. Heat for about 20-25 minutes until warmed through.
- Microwave: Place individual portions on a microwave-safe plate. Heat on high for 2-3 minutes, checking every minute.
- Stovetop: Use a non-stick skillet over medium heat, adding a splash of water if needed. Stir frequently until heated through.

Frequently Asked Questions
What is Keto Cheeseburger Casserole?
Keto Cheeseburger Casserole is a low-carb dish that combines all the flavors of a cheeseburger into one hearty bake, perfect for keto dieters.
Can I customize my Keto Cheeseburger Casserole?
Absolutely! You can add vegetables like bell peppers or mushrooms, swap out cheeses, or even try different sauces to suit your taste.
How do I know when Keto Cheeseburger Casserole is done?
The casserole is done when the cheese is fully melted and bubbly, which typically takes about 15 minutes in the oven.
Can I use ground turkey instead of beef?
Yes, ground turkey is a great substitute if you prefer a leaner option. Just be sure to season it well!
How do I store leftover Keto Cheeseburger Casserole?
Store leftovers in an airtight container in the refrigerator for up to 3 days or freeze them for up to 3 months.
Final Thoughts
Keto Cheeseburger Casserole is not only filling but also versatile and easy to prepare. With its rich flavors and customizable nature, it’s perfect for meal prep or family dinners. Don’t hesitate to experiment with your favorite ingredients!

Keto Cheeseburger Casserole
- Total Time: 30 minutes
- Yield: Serves 8
Description
Keto Cheeseburger Casserole is a delightful and satisfying dish that captures the classic flavors of a cheeseburger while keeping your carb intake in check. This hearty casserole features layers of savory ground beef, melted cheddar cheese, and zesty condiments all baked together for a creamy, comforting meal. It’s perfect for busy weeknights or family dinners, and you can easily prepare it ahead for meal prep. With just 30 minutes from start to finish, this low-carb dish is sure to become a favorite for both keto dieters and comfort food lovers alike.
Ingredients
- 2 lbs extra lean ground beef
- ¼ cup avocado oil mayonnaise
- ¼ cup unsweetened ketchup
- 1 medium onion, finely chopped
- 1½ cups shredded sharp cheddar cheese (divided)
- 1 tbsp mustard
- Salt and pepper to taste
Instructions
- Preheat oven to 400°F and spray a 2-quart baking dish with olive oil.
- In a skillet over medium-high heat, add olive oil and sauté chopped onions until tender. Add ground beef and cook until browned. Drain excess liquid.
- Stir in salt, pepper, minced garlic, ketchup, mayonnaise, mustard, and 1 cup of cheddar cheese.
- Transfer mixture to the prepared baking dish. Top with remaining cheese.
- Bake for about 15 minutes until cheese is melted and bubbly.
- Prep Time: 10 minutes
- Cook Time: 20 minutes
- Category: Main
- Method: Baking
- Cuisine: Keto
Nutrition
- Serving Size: 1/8 of casserole (approximately 190g)
- Calories: 380
- Sugar: 3g
- Sodium: 800mg
- Fat: 28g
- Saturated Fat: 10g
- Unsaturated Fat: 16g
- Trans Fat: 0g
- Carbohydrates: 6g
- Fiber: 2g
- Protein: 30g
- Cholesterol: 90mg
Keywords: For added flavor, consider mixing in diced bell peppers or mushrooms. If you're looking for a spicier kick, try adding jalapeños or using pepper jack cheese in place of cheddar.