Keto Taco Casserole


5 from 142 votes
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This keto taco casserole has all the Mexican flavors you love- slightly spicy, extra cheesy, and super comforting, you won’t miss the carbs! 5 ingredients, minimal prep, and perfect for an EASY and fast dinner!

keto taco casserole

Keto Taco Casserole

Craving Mexican food on a keto diet? If you haven’t made my enchiladas or taco soup, then you surely need to make this keto taco casserole.

I know I shouldn’t play favorites but Mexican food has to be my favorite cuisine. Ever since I was a small kid, whenever it was my turn to choose what we’d eat, I’d always pick our local Mexican restaurant.

Since starting a keto diet, it’s been easy to incorporate Mexican flavors into my recipes and give keto makeovers to some popular classics. One of my favorite quick lunches is a keto quesadilla and I ALWAYS have some fresh salsa on hand, which I add to almost everything (seriously). Come dinner time, though, I love changing things up, and nothing beats hearty and comforting cassserole.

This keto taco casserole recipe screams comfort food, and it comes together with very little prep. It needs just FIVE main ingredients to make, and it’s the kind of dish you can prepare in advance and freeze to make at a later date!

Now, most keto taco casserole recipes omit the tortillas, as store-bought ones aren’t keto friendly. However, we stay true to the classic dish and use our homemade keto tortillas– It makes it that much more authentic AND looks and tastes like ANY good Mexican casserole out there.

What I love about this dish is just how family friendly it is- For my non-keto folks, they love making it with standard flour or corn tortillas and the kids love dipping their chips and crackers into it.

How do you make a keto taco casserole?

If you’ve prepped some of my homemade taco meat already, this dish is a breeze, but if you’ve not, it’s just as easy to make from scratch.

The Ingredients

  • Olive oil– A flavorful oil to fry the ground beef in.
  • Ground beef– The best ground meat to use for Mexican dishes. I prefer using lean ground beef, as it is healthier and doesn’t leave excess oil.
  • Taco seasoning– Many taco seasonings contain hidden sugars and/or thickeners, so skip those versions and make your own.
  • Salsa– A must for any good taco casserole!
  • Keto tortillas– The secret ingredient. While some specialty stores DO sell low carb tortillas, you can easily make your own homemade ones, and they need just 3 ingredients.
  • Shredded cheese– Use a Mexican cheese blend, or a mix of tasty and Colby Jack cheeses.

The Instructions

Start by adding the olive oil into a non-stick pan and placing it over medium heat. Once hot, add the beef, break it apart, and cook it until no longer brown. Add the taco seasoning and water and let everything simmer together for 5 minutes. Stir through the salsa at the end.

Next, slice your tortillas in half and place half of them at the base of a greased 9 x 13-inch baking dish. Top with half the seasoned beef mixture and half the shredded cheese. Add the remaining tortilla halves and beef mixture, and cover everything with the remaining cheese.

Now, cover the baking dish with tin foil and bake for 15-20 minutes, until the cheese has melted. Let the casserole sit for 5 minutes before serving. If desired, add some fun toppings like sour cream and sliced avocado.

how to make a keto taco casserole

Flavor variations

  • Make it spicy. Add some cayenne pepper or red pepper flakes into the ground beef mixture for an extra spicy kick.
  • Switch up the protein. For a chicken taco casserole, use shredded chicken breast or ground chicken. Ground turkey will also work very well.
  • Make it saucy. Instead of adding water to the meat mixture, add the same amount of tomato sauce (passata).
  • Add more vegetables. Add some chopped bell peppers and cauliflower rice to the meat mixture. It will give it extra bulk, texture and nutrients.
  • Dress it up with toppings. I love adding a generous serving of sour cream, sliced avocado, and diced tomatoes on top.

Storing, freezing, and reheating keto Mexican casserole

  • To store: Leftovers can be stored in the refrigerator, covered, for up to 1 week.
  • To freeze: Place portions of the casserole in airtight container and store them in the freezer for up to 6 months.
  • Reheating: Microwave the casserole in 30-second spurts until warm or in a preheated oven.
Keto mexican casserole

What to serve with a taco casserole?

Frequently Asked Questions

Can I use store bought tortillas?

There are several brands of tortillas that are lower carb than other ones. You can use those if you prefer.

Can you add rice to this casserole?

Easily add cauliflower rice to the actual casserole. If you don’t follow a keto diet, white or brown rice can be used.

What cheeses are in a Mexican cheese blend?

Typically, cheddar cheese, Colby Jack, and Pepper Jack cheeses are in a Mexican cheese blend.

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keto taco casserole recipe

Keto Taco Casserole

5 from 142 votes
This keto taco casserole has all the delicious Mexican flavors we love, minus the carbs! Made with just 5 ingredients, it's an easy dinner recipe that comes together in minutes!
Servings: 8 servings
Prep: 5 minutes
Cook: 15 minutes
Total: 20 minutes



  • 1 tablespoon olive oil
  • 1 lb ground beef
  • 2 1/4 tablespoons taco seasoning
  • 2/3 cup water * See notes
  • 2 3/4 cups salsa
  • 6 keto tortillas cut in half
  • 3 cups shredded cheese I used a Mexican cheese blend


  • Preheat the oven to 180C/350F. Grease a 9 x 13-inch baking dish and set it aside.
  • In a non-stick pan, add the olive oil. Once hot, add the ground beef and cook until no longer brown. Remove excess liquid. Add the taco seasoning and water and let it simmer for 5 minutes, until thick. Stir through the salsa.
  • Lay half the sliced tortillas into the bottom of the baking dish. Top with half the beef mixture and half the shredded Mexican cheese. Add the remaining sliced tortillas, followed by the beef, then the remaining cheese.
  • Cover the baking dish with tin foil and bake for 15-20 minutes, until the cheese has melted. 
  • Remove the casserole from the oven and let it for five minutes, before serving.


TO STORE: Leftovers can be stored in the refrigerator, covered, for up to 1 week.
TO FREEZE: Place portions of the casserole in an airtight container and store them in the freezer for up to 6 months.
TO REHEAT: Microwave the casserole in 30-second spurts until warm or in a preheated oven.


Serving: 1servingCalories: 220kcalCarbohydrates: 4gProtein: 21gFat: 14gSodium: 359mgPotassium: 228mgFiber: 2gVitamin A: 350IUVitamin C: 1mgCalcium: 218mgIron: 2mgNET CARBS: 2g
Course: Main Course
Cuisine: American, Mexican
Author: Arman Liew
Tried this recipe?Give us a shout at @thebigmansworld or tag #thebigmansworld!

Arman Liew

I’m a two time cookbook author, photographer, and writer, and passionate about creating easy and healthier recipes. I believe you don’t need to be experienced in the kitchen to make good food using simple ingredients that most importantly, taste delicious.

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Recipe Rating


  1. 5 stars
    This taco casserole was so easy, quick and delicious! My husband and I really appreciate the variety of recipes that are Keto/Low carb due to dietary restrictions and we can have variety this way! Thank you so much!

  2. 5 stars
    This is great. I didn’t have original salsa so I used Herdez Guacamole salsa. It was delicious! After it was done baking, I topped it with a few tomatoes, lettuce and sour cream.

  3. 5 stars
    Love this! It is our favorite keto taco casserole. Easy to make ahead and cook later, and the reheated leftovers are equally good. Thanks for a great site of easy and delicious keto-friendly recipes!

  4. 5 stars
    This was excellent! I took the time to make the keto tortillas from scratch including a special trip to find psyllium husks. It was time consuming and as I was doing it I was thinking ‘never again!’ but then I made the keto taco casserole and it was so good and the homemade tortillas gave it a nice nutty flavor and some structure. It was really good topped with tomatoes, shredded lettuce, sour cream and black olives. Next time I’d add onions to the taco meat. (I froze the remaining tortillas so there can be a next time!)

  5. 5 stars
    This casserole is PERFECTION! I made it last night and am currently eating the leftovers (what was left anyway!) for lunch. My husband and I both LOVED it. Not many ingredients but SOOO much flavor!!! Will absolutely make this again. I have already shared this with many of my keto-loving friends!