If you’re looking for a warm, satisfying dinner that packs in all the zesty Tex-Mex flavors you crave—without the extra carbs—the Cheesy Low-Carb Taco Casserole Recipe is about to become your new best friend. This dish has all the comfort of classic tacos, layers of creamy, gooey cheese, and hearty seasoned beef, but skips the carbs by ditching the tortillas. It’s a breeze to make on busy weeknights, it fills your kitchen with irresistible aromas, and it’s endlessly customizable with your favorite toppings. Whether you’re low-carb, gluten-free, or just love a cheesy casserole, you’ll find yourself making this again and again.
Ingredients You’ll Need

Ingredients You’ll Need
One of the best things about this Cheesy Low-Carb Taco Casserole Recipe is how it relies on simple ingredients that work together beautifully. Each one adds a little something special—flavor, texture, creaminess, or vibrant color—to the final bake.
- Ground beef: A staple for bold taco taste and a hearty, protein-packed base.
- Onion (diced): Adds subtle sweetness and depth to the savory filling.
- Garlic (minced): Brings that classic punchy aroma and a little bit of warmth.
- Taco seasoning: The secret to those unmistakable taco night vibes—use your favorite blend or homemade.
- Salt and black pepper: Elevates and balances all the flavors in this cheesy casserole.
- Tomato sauce (no sugar added): Provides just enough tang and moisture without unnecessary carbs.
- Sour cream: Blends into the sauce for a gentle tang and a super creamy texture.
- Cream cheese (softened): Delivers extra-rich creaminess that makes every bite decadent.
- Shredded cheddar cheese: Melts into beautiful golden bubbles over the casserole.
- Shredded Monterey Jack cheese: Offers a mild, melty counterpoint to the sharp cheddar.
- Olive oil (for cooking): Keeps everything sizzling in the skillet and adds silky mouthfeel.
- Chopped green onions, diced tomatoes, sliced jalapeños (optional garnishes): These fresh pops of color and flavor are like the cherry on top for taco casserole lovers.
How to Make Cheesy Low-Carb Taco Casserole Recipe
Step 1: Sauté Your Aromatics
Start by preheating your oven to 375°F (190°C). Heat up your olive oil in a large skillet over medium heat, and toss in those diced onions. Let them cook for about 3–4 minutes, stirring occasionally, until they’re wonderfully soft and translucent—this step lays down the sweet, savory foundation for your filling.
Step 2: Brown the Beef
Add the ground beef and break it up with a spoon as it cooks. Keep sautéing until the beef is nicely browned and crumbly, with no pink left. If there’s a lot of excess grease, carefully drain it off so your casserole isn’t oily, but leave just enough for flavor.
Step 3: Flavor Boost
Now build in those classic taco flavors: add the minced garlic, your favorite taco seasoning, a touch of salt, black pepper, and the no-sugar-added tomato sauce. Stir it all together and let the mixture simmer for about 5 minutes, letting the spices and tomato meld right into the beef.
Step 4: Creamy Taco Upgrade
In a small bowl, stir together the sour cream and softened cream cheese until you have a lovely smooth mixture. Spoon this luxurious blend into your beef mixture and cook for another 2–3 minutes. It should turn velvety and luscious, promising an extra layer of richness in every bite of your Cheesy Low-Carb Taco Casserole Recipe.
Step 5: Assemble and Bake
Transfer everything to a greased 8×8-inch baking dish, spreading the mixture evenly. Top with a generous layer of shredded cheddar and Monterey Jack cheeses. Slide the casserole into your preheated oven and bake for 15–20 minutes, or until the cheese is melted, golden, and bubbly at the edges—this is where the magic really happens!
Step 6: Finishing Touches
Take your casserole out of the oven and let it cool for a few minutes, so those melty cheese layers set just enough. Finish with sprinkles of chopped green onions, juicy diced tomatoes, or spicy sliced jalapeños—let your table (and your taste buds) take a little trip to taco paradise.
How to Serve Cheesy Low-Carb Taco Casserole Recipe
Garnishes
For a dish like this, garnishes aren’t just about looks—they add fresh crunch, color, and a little zest that makes each forkful pop. Go classic with some chopped green onions or dice up tomatoes for sweet juiciness. If you love some heat, a scatter of sliced jalapeños on top does wonders. A dollop of extra sour cream can make it even creamier and more decadent, while cilantro leaves will brighten every bite.
Side Dishes
This casserole is filling but loves good company. Pair it with a crisp green salad tossed in lime vinaigrette for freshness. Cauliflower rice is a fantastic low-carb side that soaks up all that juicy taco flavor. For a more indulgent taco night, try serving with low-carb tortillas to wrap around bites of the cheesy casserole—almost like deconstructed tacos!
Creative Ways to Present
If you’re hosting or just want to change things up, spoon the casserole into mini ramekins for individual portions or stuff it into hollowed bell peppers before baking. You can also top with crushed pork rinds for extra crunch or drizzle with hot sauce for more kick. The Cheesy Low-Carb Taco Casserole Recipe is easy to adapt for casual weeknights or festive gatherings—get creative and make it your signature Taco Tuesday centerpiece!
Make Ahead and Storage
Storing Leftovers
If you find yourself with leftovers (lucky you!), simply cover and refrigerate the casserole in its dish or portion into airtight containers. It’ll stay fresh in the fridge for up to 4 days, keeping its flavor and texture beautifully intact for easy lunches or dinners.
Freezing
The Cheesy Low-Carb Taco Casserole Recipe is definitely freezer-friendly! Once cooled completely, wrap the whole dish tightly in foil and then plastic wrap, or store portions in freezer containers. It will keep well for up to 2 months. When ready to enjoy, thaw overnight in the fridge for best results.
Reheating
To reheat, you can pop individual slices in the microwave for quick convenience or warm larger amounts in a 350°F oven until hot and bubbly again. To keep the cheese topping melty and not dried out, cover loosely with foil if reheating a big batch in the oven.
FAQs
Can I make the Cheesy Low-Carb Taco Casserole Recipe with ground turkey or chicken?
Absolutely! Just swap in an equal amount of ground turkey or chicken for the beef. The flavors meld beautifully, and the casserole will still be rich, filling, and low in carbs.
Is this recipe kid-friendly?
Yes! Most kids love the cheesy, familiar taco flavors in this dish. You can leave out the jalapeños and customize the seasonings to make it as mild or flavorful as your family prefers.
Can I prepare the Cheesy Low-Carb Taco Casserole Recipe ahead of time?
Definitely! Assemble the casserole up to the point of baking, cover, and refrigerate it for up to 24 hours. When ready to bake, simply add a few extra minutes to the baking time to compensate for the cold start.
How can I increase the spice level?
If heat is your thing, try adding pepper jack cheese, a diced chipotle in adobo, or a pinch of cayenne pepper to the beef mixture. Fresh jalapeño slices on top also add a zesty punch!
What other toppings work well with this casserole?
You can get as creative as you like! Try shredded lettuce, sliced black olives, diced avocado, or even a drizzle of your favorite salsa. The Cheesy Low-Carb Taco Casserole Recipe is a fantastic canvas for all sorts of taco-inspired toppings.
Final Thoughts
This Cheesy Low-Carb Taco Casserole Recipe is that rare combination of weeknight-easy, crowd-pleasing, AND a total flavor bomb—so it deserves a spot in your regular dinner rotation. I hope you’re as excited to dig into bubbling, cheesy, taco goodness as I am to share it. Give it a try soon, and don’t forget to put your own fun spin on those toppings!
Print
Cheesy Low-Carb Taco Casserole Recipe
- Prep Time: 10 minutes
- Cook Time: 30 minutes
- Total Time: 40 minutes
- Yield: 4 servings
- Category: Main Course
- Method: Baking
- Cuisine: Mexican-Inspired
- Diet: Non-Vegetarian
Description
This Cheesy Low-Carb Taco Casserole is a delicious and easy-to-make dish that is perfect for a satisfying weeknight meal. Packed with flavorful ground beef, creamy cheeses, and a touch of spice, this casserole is sure to become a family favorite.
Ingredients
Ground Beef Mixture:
- 1 pound ground beef
- 1/2 small onion, diced
- 2 cloves garlic, minced
- 1 tablespoon taco seasoning
- 1/2 teaspoon salt
- 1/4 teaspoon black pepper
- 1/2 cup tomato sauce (no sugar added)
Cheese Mixture:
- 1/4 cup sour cream
- 4 oz cream cheese, softened
- 1 cup shredded cheddar cheese
- 1/2 cup shredded Monterey Jack cheese
Additional:
- 1 tablespoon olive oil (for cooking)
- Chopped green onions, diced tomatoes, and sliced jalapeños for garnish (optional)
Instructions
- Preheat the oven: Preheat the oven to 375°F (190°C).
- Cook the beef: In a skillet, cook onion, garlic, and ground beef until browned. Add taco seasoning, salt, pepper, and tomato sauce. Simmer.
- Prepare the cheese mixture: Mix sour cream and cream cheese until smooth. Stir into the skillet.
- Assemble the casserole: Transfer the beef mixture to a baking dish. Top with cheddar and Monterey Jack cheeses.
- Bake: Bake for 15–20 minutes until cheese is melted.
- Garnish and serve: Top with green onions, tomatoes, and jalapeños. Serve and enjoy!
Notes
- Serve with a side salad, cauliflower rice, or low-carb tortillas.
- For extra spice, use pepper jack cheese or add cayenne.
Nutrition
- Serving Size: 1 portion
- Calories: 410
- Sugar: 3g
- Sodium: 560mg
- Fat: 31g
- Saturated Fat: 15g
- Unsaturated Fat: 13g
- Trans Fat: 0g
- Carbohydrates: 6g
- Fiber: 1g
- Protein: 26g
- Cholesterol: 105mg

