Low Carb Taco Casserole Recipe
This Low Carb Taco Casserole Recipe is the perfect dinner idea for anyone trying to eat low carb or Keto. A satisfying meal that is quick, easy and nutritious. Make rice to serve on the side and this will be a family favorite weeknight dinner!
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Healthy Taco Casserole – Keto, Low Carb
Who doesn’t love a good taco night?!?! This Low Carb Taco Casserole makes taco night for everyone! If the entire family is eating low carb, serve this as is. Some need their carbs?…serve rice on the side.
This taco casserole can be eaten as is, with tortilla chips, over a salad, alongside rice or in a tortilla. So easy, so many options and so good!

Ingredients Needed For Taco Casserole (screenshot for grocery list)
- Frozen Cauliflower Rice
- Oil
- Ground Beef
- Red Bell Pepper
- White Onion
- Taco Seasoning
- Tomato Paste
- Shredded Colby/Jack Cheese
- Sour Cream
- Lettuce
- Tomato
- Black Olives
- Avocado/Guac
- Cilantro
- Jalapeno
- Salsa – Hot Sauce
How Do You Make Taco Casserole
- Preheat oven to 350ºF
- Pan fry the cauliflower rice in oil over medium/high heat until browned. Transfer to greased casserole dish and spread in an even layer.
- Brown ground beef with red pepper and onion over medium/high heat. Drain excess fat if necessary then add taco seasoning, tomato paste and water. Stir and cook until liquid absorbs. Transfer to casserole dish in an even layer on top of cauliflower rice.
- Top with shredded cheese and bake for 10-15 minutes.
- Spread sour cream over the top. Sprinkle with extra shredded cheese and toppings.
Can This Be Made Ahead
Yes, this can definitely be made ahead. Prepare the casserole without toppings then cover and refrigerate. Reheat and add toppings before serving.
What Is The Best Way To Store Taco Casserole
Cover and refrigerate. If you plan to have lots of leftovers leave off the sour cream and lettuce. This will make reheating more appealing, the sour cream and lettuce can be added before serving.
What To Serve With Taco Casserole
Any Mexican inspired sides will be great with this taco casserole. Here are a few ideas for you:
Mexican Street Corn Salad – Creamy Avocado Dip – Mexican Shrimp Cocktail
Check out more Easy Low Carb Casseroles:
Low Carb Unstuffed Casserole – Shrimp in Spinach Cream Sauce – Low Carb Chili Relleno Casserole
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Low Carb Taco Casserole Recipe
Equipment
Ingredients
- 10 ounces Frozen Cauliflower Rice
- 2-3 Tablespoons Oil
- 2 Lbs Ground Beef
- 1 Small Red Bell Pepper - seeded chopped
- 1 Small White Onion - chopped
- 4 Tablespoons Taco Seasoning
- 1 Tablespoon Tomato Paste
- 1/2 Cup Water
- 3 Cups Shredded Colby/Jack Cheese
- 1 Cup Sour Cream
- Toppings:
- Chopped Lettuce
- Chopped Tomato
- Sliced Black Olives
- Avocado/Guac
- Cilantro
- Sliced Jalapeno
- Salsa – Hot Sauce
Instructions
- Preheat oven to 350ºF
- Pan fry the cauliflower rice in oil over medium/high heat until browned. Transfer to greased 2qt casserole dish and spread in an even layer.
- Brown ground beef with red pepper and onion over medium/high heat. Drain excess fat if necessary then add taco seasoning, tomato paste and water. Stir and cook until liquid absorbs. Transfer to casserole dish in an even layer on top of cauliflower rice.
- Top with shredded cheese and bake for 10-15 minutes.
- Spread sour cream over the top. Sprinkle with extra shredded cheese and preferred toppings.
Nutrition






Why is the fat so high?!
This was so delicious. Will definitely be making this dish again.
This is such a great idea! I modified it to suit our tastes then served it over romaine lettuce for some crunch. Thank you.
My family loved this!!!! ❤️❤️
Delicious! I’ve made this several times…. 5 stars!
I’m wondering if adding black beans would be good as well and still healthy
Very easy to put together. I used turkey meat instead of ground beef was very yummy casserole.
Made this tonight and it was a hit! We didn’t feel like it was low carb at all. I baked the rice and meat/cheese layer, then had everyone just add their favorite toppings to their serving. I had sour cream, lettuce, salsa, tomatoes, jalapenos. I will definitely make again! Thanks for sharing!
I bet that would be a great addition!
THE RECIPE CALLED FOR LETTUCE, SALSA, & GUAC BUT NO MENTIONING OF WHAT TO DO W/IT. DID I MISS SOMETHING?
So simple yet so delicious. We couldn’t stop eating it! A nice change from regular tacos or taco salad as we don’t follow keto but have been trying to eat lower carb meals recently.
Found this recipe from Livingwithlady on Instagram. It is a hit in our house. From the 15 month old all the way up to the parents!
Wondering how left overs would be? Would you suggest not putting the lettuce and sour cream on if planning to reheat?
Delicious! The rest of the family had no idea they ate cauliflower! Everyone enjoyed it. Thank you.
What type of ground beef do you use? 85/15 or 93/7?
We liked it but next time would add either some jalapeños or some diced green chilies for some added spice. I like a bit more heat. Otherwise it’s a recipe I will make again.
I made this for super bowl Sunday. I ended up using regular rice because I forgot the cauliflower rice, it was still delicious. The amount of rice you eat in each serving is very minimal. I got 8 servings out of it.