If you have been searching for a dish that perfectly combines the comforting flavors of a classic cheeseburger with the ease and low-carb benefits of keto, your hunt ends here. This Keto Cheeseburger Casserole Recipe offers a rich, cheesy, and savory meal that feels indulgent without any guilt. Every bite is packed with juicy ground beef, sharp cheddar, and that delightful tang of mustard and ketchup, all baked into a warm, bubbly casserole. It’s an absolute weeknight winner that makes keto dining exciting and satisfying for the whole family.
Ingredients You’ll Need
The magic of this Keto Cheeseburger Casserole Recipe lies in its simplicity. Each ingredient plays a vital role, from bringing out deep, savory flavors to adding creamy textures and a touch of tanginess that elevates the whole dish. Let’s dive into everything you’ll want to have ready to make this happen.
- Olive oil spray: Perfect for greasing the baking dish to prevent sticking without added calories.
- 2 tablespoons olive oil: Helps brown the beef beautifully and adds richness.
- 2 pounds extra-lean ground beef: The hearty, protein-packed base of the casserole that keeps it keto-friendly.
- 1 medium onion, finely chopped: Adds sweetness and a hint of crunch once cooked down.
- 2 teaspoons Diamond Crystal kosher salt: Essential for seasoning and enhancing all the flavors.
- 1/4 teaspoon black pepper: Provides just the right amount of mild heat.
- 1 tablespoon fresh garlic, minced: Infuses the beef mixture with aromatic depth.
- 1/4 cup mayonnaise: Adds creaminess and a subtle tang that balances the dish.
- 1/4 cup unsweetened ketchup: Brings classic burger flavor without added sugars.
- 1 tablespoon mustard: Cuts through richness with a bright, sharp note.
- 1 1/2 cups sharp cheddar cheese, shredded and divided: Offers melty, gooey texture and sharp flavor to crown the casserole perfectly.
How to Make Keto Cheeseburger Casserole Recipe
Step 1: Prepare Your Oven and Dish
Start by preheating your oven to 400 degrees Fahrenheit (200 Celsius). While it warms, grab a 2-quart baking dish and lightly spray it with olive oil. This simple step ensures nothing sticks and makes for easy cleanup later on.
Step 2: Brown the Beef and Onion
Next, heat the olive oil in a large skillet over medium-high heat for a couple of minutes. Add the ground beef and finely chopped onion. Cook them together, stirring and breaking up the meat, until the beef turns a rich brown and the onion softens—this usually takes about 5 minutes. This step is where the deep, savory base flavor really develops.
Step 3: Season and Sauté Garlic
If you notice any liquid collected in your pan at this point, carefully pour it off and return the beef and onions to the skillet. Sprinkle in the kosher salt, black pepper, and minced garlic. Stir everything for an extra minute, allowing the garlic to release its fragrant aroma and blend perfectly with the beef.
Step 4: Add the Creamy Sauce
Turn off the heat, then stir in the mayonnaise, unsweetened ketchup, and mustard. Once combined, fold in 1 cup of the shredded sharp cheddar cheese. This creamy, tangy mixture melts slightly from the residual heat and ties together every savory bite.
Step 5: Assemble and Top with Cheese
Transfer your delicious beef mixture into the prepared baking dish, spreading it evenly. Sprinkle the remaining half cup of shredded cheddar cheese all over the top to create a golden, melty crust during baking.
Step 6: Bake to Perfection
Place the casserole in your preheated oven and bake just until the cheese is melted and bubbly and the casserole is warmed through—about 15 minutes. If you prefer an extra crispy, golden top, switch your oven to broil and place the dish about 6 inches below the element for 1 to 2 minutes, watching carefully so it doesn’t burn. Serve hot and enjoy every comforting bite.
How to Serve Keto Cheeseburger Casserole Recipe
Garnishes
To add a fresh and colorful touch, consider garnishing your casserole with chopped fresh parsley, green onions, or even pickled jalapeños for a spicy kick. A dollop of sour cream or a sprinkle of crumbled bacon also enhances the flavors and adds inviting little bursts of texture.
Side Dishes
This casserole is a satisfying meal on its own, but if you want to round things out, a crisp side salad or steamed low-carb vegetables such as broccoli or zucchini ribbons make excellent companions. These lighter sides keep the meal balanced and add brightness to every forkful.
Creative Ways to Present
Feeling festive? Spoon individual servings into mini ramekins for a fun party dish or bake the casserole in a cast-iron skillet for a rustic and cozy look right at the table. Pair it with keto-friendly buns or wraps for a delightful finger-food spread that’s sure to impress family and friends.
Make Ahead and Storage
Storing Leftovers
Leftover Keto Cheeseburger Casserole Recipe reheats beautifully and makes a fantastic next-day meal. Cool the casserole completely before covering it tightly with foil or plastic wrap and refrigerate for up to four days. This way, you’ll have a quick, tasty keto option ready whenever hunger strikes.
Freezing
If you’re meal prepping or want to stash this keto-friendly comfort food for later, this casserole freezes well. Let it cool completely, then wrap it tightly in plastic wrap followed by foil or place it in an airtight freezer-safe container. Freeze for up to three months. When ready, thaw overnight in the fridge for best results.
Reheating
Reheat leftovers in the oven at 350 degrees Fahrenheit (175 Celsius) for about 15–20 minutes until warmed through and bubbly. Alternatively, microwave individual servings on medium power for 1 to 2 minutes. Both methods revive that cheesy melt and satisfy those cravings fast.
FAQs
Can I use a different type of cheese in this casserole?
Absolutely! While sharp cheddar adds great flavor, you can swap in Monterey Jack, mozzarella, or a cheese blend you love. Just ensure it melts well to keep the casserole creamy and tasty.
Is this recipe suitable for beginners?
Definitely! The Keto Cheeseburger Casserole Recipe is straightforward with simple prep steps, making it ideal for cooks of any experience level who want a quick, hearty keto meal.
Can I make this recipe dairy-free?
To make it dairy-free, try substituting the cheddar with a non-dairy cheese alternative that melts well and use a mayonnaise that fits your dietary preferences. The flavors will still come through beautifully.
What if I don’t have Diamond Crystal kosher salt?
You can use any kosher salt or sea salt as a substitute, but remember that Diamond Crystal is less dense, so if you’re using table salt, reduce the amount to avoid over-salting.
Can I add vegetables to this casserole?
Yes! Chopped bell peppers or mushrooms work great stirred in with the beef. Keep additions moderate to maintain the classic cheeseburger flavor and keto-friendly carb count.
Final Thoughts
This Keto Cheeseburger Casserole Recipe is one of those comforting meals that feels like a treat while fitting perfectly into a low-carb lifestyle. It’s simple to make, packed with bold flavors, and melts cheesy happiness into every bite. I encourage you to try it soon and watch it become a fast favorite for you and everyone at your table. Happy cooking!
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Keto Cheeseburger Casserole Recipe
- Total Time: 30 minutes
- Yield: 6 servings 1x
- Diet: Low Carb
Description
This Keto Cheeseburger Casserole is a hearty, low-carb twist on the classic cheeseburger flavors baked into a savory casserole. Made with lean ground beef, sharp cheddar cheese, and a tangy blend of mayonnaise, unsweetened ketchup, and mustard, it’s a delicious and quick meal that’s perfect for keto and low-carb diet enthusiasts.
Ingredients
Main Ingredients
- Olive oil spray, for greasing the baking dish
- 2 tablespoons olive oil
- 2 pounds extra-lean ground beef
- 1 medium onion, finely chopped (about 6 ounces)
- 2 teaspoons Diamond Crystal kosher salt
- 1/4 teaspoon black pepper
- 1 tablespoon fresh garlic, minced
- 1/4 cup mayonnaise
- 1/4 cup unsweetened ketchup
- 1 tablespoon mustard
- 1 1/2 cups sharp cheddar cheese, shredded and divided (about 6 ounces total)
Instructions
- Preheat Oven and Prepare Dish: Preheat your oven to 400°F (200°C). Spray a 2-quart baking dish with olive oil spray to prevent sticking.
- Cook Ground Beef and Onion: Heat the olive oil in a large skillet over medium-high heat for about 2 minutes. Add the ground beef and chopped onion. Cook, breaking up the meat with a spoon, until the beef is browned and the onions have softened, approximately 5 minutes.
- Drain Excess Liquid and Season: Carefully drain any liquid from the skillet, then return the beef and onion mixture to the pan. Stir in the kosher salt, black pepper, and minced garlic. Continue cooking for 1 more minute, stirring constantly to combine the flavors.
- Mix in Sauces and Cheese: Turn off the heat. Stir in the mayonnaise, unsweetened ketchup, mustard, and 1 cup of the shredded cheddar cheese until everything is evenly blended.
- Assemble the Casserole: Transfer the mixture to the prepared baking dish. Evenly sprinkle the remaining 1/2 cup of shredded cheddar cheese over the top.
- Bake or Broil: Bake in the preheated oven for about 15 minutes until the cheese is melted and the casserole is heated through. Alternatively, if your baking dish is broiler-safe, you can broil it 6 inches beneath the broiler for 1–2 minutes until bubbly and golden. Serve hot.
Notes
- Diamond Crystal kosher salt is recommended for seasoning, but you can substitute with Morton kosher salt in a lesser amount (use about half the quantity).
- Draining excess liquid from the cooked beef helps prevent a watery casserole and ensures better texture.
- You can adjust the seasoning to taste, adding more or less salt or pepper as desired.
- If you prefer a stronger cheese flavor, sprinkle extra cheddar on top before baking.
- This casserole can be served with a side salad or low-carb vegetables to complete the meal.
- Prep Time: 15 minutes
- Cook Time: 15 minutes
- Category: Main Dish
- Method: Baking
- Cuisine: American
