Keto Cheeseburger Comfort Dish

This keto cheeseburger casserole is the perfect solution for busy weeknights when you want something comforting and low-carb without fuss. It brings together all the classic cheeseburger flavors with ground beef, sharp cheddar, and familiar condiments baked into a satisfying dish.

I first made this after craving a burger without the bun and it quickly became a staple when I want a cozy meal that feels indulgent but stays on track.

Ingredients

• Ground beef: provides hearty protein and richness choose extra lean for less fat and a lighter finish
• Coarse kosher salt: enhances all the flavors more than table salt would
• Avocado oil mayonnaise: adds creamy tang without sugar look for brands without added sugar or preservatives
• Black pepper: for a subtle kick freshly ground is best for aroma
• Minced garlic: contributes savory depth fresh garlic adds the best flavor
• Olive oil spray: helps prevent sticking use a light mist to keep the casserole dish clean
• Unsweetened ketchup: keeps sugar low and brings a familiar tang check labels to avoid added sweeteners
• Medium onion: adds sweetness and texture aim for a firm, fresh onion with no sprouting
• Sharp cheddar cheese: gives the classic cheeseburger flavor opt for freshly shredded to melt better
• Olive oil: for cooking choose extra virgin for a richer flavor
• Mustard: gives a bright, piquant note Dijon or yellow are both great here depending on your taste

Instructions

Preheat the Oven and Prepare Dish:

Set your oven to 400 degrees Fahrenheit and lightly coat a 2-quart baking dish with olive oil spray to make sure the casserole does not stick and bakes evenly

Sauté Onions and Brown Beef:

Heat olive oil in a large skillet over medium high heat for around two minutes until shimmering. Add finely chopped onions and ground beef. Stir often, breaking the meat apart until the beef is fully browned and onions are soft and translucent. This will take about five minutes

Drain Excess Liquid:

If there is any liquid collecting at the bottom of the pan, carefully drain it out before returning the meat mixture to the skillet. This keeps the casserole from becoming watery

Season and Build Flavor:

Stir in kosher salt, freshly ground black pepper, and minced garlic. Cook this mixture for a couple more minutes to let the garlic’s aroma bloom and the seasonings meld into the beef

Add Condiments and Cheese:

Remove from heat. Mix in the unsweetened ketchup, mayonnaise, mustard, and one cup of shredded cheddar cheese thoroughly. This combination simulates the classic cheeseburger taste in creamy, cheesy form

Assemble the Casserole:

Transfer the mixture to your prepared baking dish, spreading it out evenly. Sprinkle the remaining half cup of cheddar cheese on top to create a golden crust when baked

Bake to Melty Perfection:

Place the dish in the oven and bake for 15 minutes until the cheese melts and the whole casserole is hot throughout. If you have a broiler safe dish, placing it under the broiler for 1 to 2 minutes about six inches from the heating element will brown and bubble the cheese for extra appeal

I love how the sharp cheddar melts just right with that combination of condiments reminding me of backyard cookouts where burgers were the stars. This dish captures those memories in an easy oven meal.

Storage Tips

Store leftovers in an airtight container in the refrigerator for up to four days. Reheat gently in the microwave or oven to preserve texture and flavor. This is great for meal prep when you want a ready-to-go keto dinner any night.

Ingredient Swaps

Ground turkey or chicken make lighter alternatives to beef but will need added seasoning to boost flavor. Feel free to swap sharp cheddar for mozzarella or pepper jack for a mild or spicy twist. Using sugar free BBQ sauce instead of ketchup works well too if you want a smoky note.

Serving Ideas

This casserole pairs beautifully with a simple green salad or roasted vegetables to add freshness and fiber. For a guacamole or avocado slice on the side adds creaminess and extra fat to keep the macros balanced. A dollop of sour cream can also bring cooling contrast.

This casserole delivers all the cheeseburger flavor you want with keto-friendly simplicity. It's perfect for busy weeknights and satisfaction guaranteed.

Frequently Asked Recipe Questions

→ Can I use different cheese types in this dish?

Absolutely! While sharp cheddar adds a classic tang, feel free to experiment with mozzarella, pepper jack, or Monterey Jack for varied flavors and textures.

→ What’s the best ground beef to use?

Extra lean ground beef is recommended to keep the dish light, but ground chuck or a lean blend will add juiciness and richness.

→ How do I prevent the mixture from becoming too watery?

Drain excess fluids after browning the meat and onions. This ensures a thick, cohesive casserole without sogginess.

→ Can this be prepared ahead of time?

You can assemble it in advance and refrigerate before baking. Bring it to room temperature before placing it in the oven for even cooking.

→ Are there suggestions for additional toppings?

Consider diced pickles, crispy bacon bits, or a sprinkle of chopped green onions to elevate the dish’s flavor.