Keto Cheeseburger Casserole
This Keto Cheeseburger Casserole is a delightful and hearty meal that perfectly embodies the flavors of a classic cheeseburger while being low in carbs. It’s an excellent choice for family dinners or meal prep throughout the week. The combination of savory beef, rich cheese, and zesty condiments creates a satisfying dish that will please everyone at the table.
Why You’ll Love This Recipe
- Quick and Easy: This casserole comes together in just 30 minutes, making it perfect for busy weeknights.
- Low-Carb Delight: Enjoy all the flavors of a cheeseburger without the carbs. Ideal for those following a keto diet!
- Family-Friendly: A crowd-pleaser that kids and adults alike will love. Serve it for any occasion!
- Versatile Ingredients: Customize with your favorite toppings or side dishes for added flair.
- Meal Prep Friendly: Make it ahead of time and enjoy leftovers throughout the week, saving you time and effort.
Tools and Preparation
To make this Keto Cheeseburger Casserole, having the right tools makes all the difference. You’ll find preparation quick and straightforward with these essential items.
Essential Tools and Equipment
- Large skillet
- 2-quart baking dish
- Cooking spatula
- Measuring cups and spoons
Importance of Each Tool
- Large skillet: Perfect for browning the beef and sautéing onions evenly.
- 2-quart baking dish: Ideal size to hold all your delicious ingredients without spilling.
- Cooking spatula: Great for stirring and breaking up the beef as it cooks.
- Measuring cups and spoons: Ensures accurate measurements for consistent results every time.

Ingredients
This simple keto cheeseburger casserole is filling and hearty and makes a superb low-carb option to your cheeseburger.
For the Meat Mixture
- 2 lbs extra lean ground beef
- 2 tsp coarse kosher salt (not fine salt)
- ¼ tsp black pepper
- 1 tbsp minced garlic
- 1 medium onion (finely chopped (about 6 oz))
For the Sauce
- ¼ cup avocado oil mayonnaise
- ¼ cup unsweetened ketchup
- 1 tbsp mustard
For Topping
- 1 ½ cup shredded sharp cheddar (divided (about 6 oz))
- 2 tbsp olive oil
- olive oil spray for the baking dish
How to Make Keto Cheeseburger Casserole
Step 1: Preheat the Oven
Preheat your oven to 400°F (200°C). While it’s heating up, spray a 2-quart baking dish with olive oil to prevent sticking.
Step 2: Cook the Beef and Onions
Heat olive oil in a large skillet over medium-high heat for about 2 minutes.
* Add chopped onions and ground beef to the skillet.
* Cook while stirring to break up the beef until browned and onions are tender (approximately 5 minutes).
* Drain any excess liquid from the skillet before returning it back to heat.
Step 3: Season the Mixture
Stir in black pepper, minced garlic, and kosher salt into the meat mixture.
* Continue cooking while stirring for another few minutes until well combined.
Step 4: Add Sauces and Cheese
Turn off heat. Stir in unsweetened ketchup, avocado mayonnaise, mustard, and one cup of shredded cheddar cheese until evenly mixed.
Step 5: Transfer to Baking Dish
Transfer this flavorful mixture into your prepared baking dish.
Sprinkle remaining shredded cheddar cheese on top generously.
Step 6: Bake or Broil
Bake in preheated oven until cheese is melted and casserole is heated through (about 15 minutes).
Alternatively, if your baking dish is broiler-safe:
* Broil it about 6 inches below heating element until cheese melts (1-2 minutes).
Enjoy your delicious Keto Cheeseburger Casserole!
How to Serve Keto Cheeseburger Casserole
Serving your Keto Cheeseburger Casserole can elevate the meal experience. Here are some delicious ways to enjoy this hearty dish.
Pair with Fresh Greens
- Garden Salad: A simple mixed green salad with a light vinaigrette complements the richness of the casserole.
- Spinach Salad: Toss fresh spinach with cherry tomatoes, avocado, and a dash of lemon for a refreshing side.
Add Some Crunch
- Crispy Pickles: Serve with dill pickles or pickled jalapeños on the side for an extra crunch and tang.
- Celery Sticks: Fresh celery sticks provide a satisfying crunch and pair well with ranch dressing.
Top It Off
- Sour Cream: A dollop of sour cream adds creaminess and balances the flavors perfectly.
- Chopped Green Onions: Sprinkle chopped green onions on top for added color and flavor.
How to Perfect Keto Cheeseburger Casserole
To ensure your Keto Cheeseburger Casserole turns out delicious every time, consider these helpful tips.
- Use Lean Meat: Opt for extra-lean ground beef to keep the dish healthier without sacrificing flavor.
- Don’t Skip the Seasoning: Proper seasoning is vital; don’t hesitate to adjust salt and pepper according to your taste preferences.
- Let It Rest: Allow the casserole to sit for a few minutes after baking. This helps it set and makes it easier to serve.
- Experiment with Cheese: Try mixing different types of cheese like mozzarella or pepper jack for unique flavors.
- Add Veggies: Incorporate diced bell peppers or mushrooms into the meat mixture for added nutrition and texture.
Best Side Dishes for Keto Cheeseburger Casserole
Pairing sides with your Keto Cheeseburger Casserole can enhance your meal. Here are some tasty options to consider.
- Garlic Mashed Cauliflower: A creamy, low-carb alternative to mashed potatoes that pairs wonderfully with beef dishes.
- Zucchini Noodles: Lightly sautéed zucchini noodles add freshness and a veggie boost to your plate.
- Roasted Brussels Sprouts: Crispy roasted Brussels sprouts seasoned with olive oil and garlic make an excellent side.
- Cauliflower Rice: Fluffy cauliflower rice is perfect for soaking up any casserole juices while keeping carbs low.
- Stuffed Bell Peppers: Bell peppers stuffed with quinoa or vegetables make a colorful and nutritious addition.
- Coleslaw: A crunchy coleslaw made with cabbage and carrot adds texture and balances out the richness of the casserole.
Common Mistakes to Avoid
Avoiding common mistakes can make your Keto Cheeseburger Casserole even better.
- Using the wrong ground meat: Always opt for extra lean ground beef to keep it low-carb and healthy. Using fatty cuts can lead to a greasy casserole.
- Overcooking the beef: Cook the beef just until browned. Overcooking can make it tough and dry, affecting the overall texture of your casserole.
- Not measuring ingredients: Accurate measurements are crucial. Too much salt or cheese can overpower the dish, while too little can lead to bland flavors.
- Skipping the draining step: After cooking, be sure to drain excess fat. Skipping this step may result in a watery casserole that lacks flavor.
- Underestimating baking time: Ensure you bake until the cheese is thoroughly melted. Rushing this step can leave your casserole unevenly heated.

Storage & Reheating Instructions
Refrigerator Storage
- Store leftovers in an airtight container.
- The casserole will last for up to 4 days in the refrigerator.
Freezing Keto Cheeseburger Casserole
- Allow the casserole to cool completely before freezing.
- Use a freezer-safe container or wrap it tightly in plastic wrap and aluminum foil.
- It can be frozen for up to 3 months.
Reheating Keto Cheeseburger Casserole
- Oven: Preheat to 350°F and cover with foil. Bake for about 20-25 minutes until heated through.
- Microwave: Heat individual portions on medium power for 1-2 minutes or until warm, stirring halfway through.
- Stovetop: Place in a skillet over medium heat, stirring occasionally until warmed through.
Frequently Asked Questions
What is a Keto Cheeseburger Casserole?
Keto Cheeseburger Casserole is a low-carb dish made with lean ground beef, cheese, and keto-friendly condiments, perfect for those following a ketogenic diet.
How long does it take to prepare Keto Cheeseburger Casserole?
The total time for preparation and cooking is around 30 minutes, making it a quick meal option.
Can I customize my Keto Cheeseburger Casserole?
Absolutely! You can add vegetables like bell peppers or zucchini for extra nutrition or swap out cheeses based on your preferences.
Is Keto Cheeseburger Casserole suitable for meal prep?
Yes! This dish is perfect for meal prep as it stores well in both the fridge and freezer, allowing you to enjoy it throughout the week.
Final Thoughts
The Keto Cheeseburger Casserole is not only delicious but also an incredibly versatile dish. With its rich flavors and hearty ingredients, it’s perfect for any dinner table. Feel free to customize it with your favorite veggies or spices to make it your own—don’t hesitate to give this recipe a try!
Keto Cheeseburger Casserole
Keto Cheeseburger Casserole is a deliciously satisfying dish that brings the classic flavors of a cheeseburger into a low-carb casserole form. Perfect for busy weeknights or meal prep, this recipe features savory ground beef, rich cheese, and zesty condiments all baked together to create a hearty meal your whole family will love. With just 30 minutes of prep and cooking time, you can enjoy a comforting and healthy dinner that is both filling and flavorful. Customize it with your favorite toppings or pair it with fresh sides for an elevated dining experience.
- Prep Time: 10 minutes
- Cook Time: 20 minutes
- Total Time: 30 minutes
- Yield: Serves approximately 8 people 1x
- Category: Main
- Method: Baking
- Cuisine: American
Ingredients
- 2 lbs extra lean ground beef
- 2 tsp coarse kosher salt
- ¼ tsp black pepper
- 1 tbsp minced garlic
- 1 medium onion (finely chopped)
- ¼ cup avocado oil mayonnaise
- ¼ cup unsweetened ketchup
- 1 tbsp mustard
- 1 ½ cups shredded sharp cheddar cheese (divided)
- 2 tbsp olive oil
- olive oil spray for the baking dish
Instructions
- Preheat your oven to 400°F (200°C) and spray a 2-quart baking dish with olive oil.
- In a large skillet over medium-high heat, heat olive oil, add chopped onions and ground beef, cooking until browned (about 5 minutes). Drain excess liquid.
- Stir in black pepper, minced garlic, and kosher salt; cook for another few minutes.
- Turn off heat and mix in unsweetened ketchup, avocado mayonnaise, mustard, and one cup of shredded cheddar cheese.
- Transfer the mixture to the baking dish, topping with remaining cheddar cheese.
- Bake for about 15 minutes until the cheese is melted or broil for 1-2 minutes if broiler-safe.
Nutrition
- Serving Size: 1 slice (approximately 120g)
- Calories: 330
- Sugar: 2g
- Sodium: 650mg
- Fat: 24g
- Saturated Fat: 10g
- Unsaturated Fat: 13g
- Trans Fat: 0g
- Carbohydrates: 5g
- Fiber: 1g
- Protein: 26g
- Cholesterol: 85mg
