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close up of a scoop of ground beef mexican casserole being lifted up with a wood server
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4.67 from 6 votes

Keto Mexican Casserole

Keto Mexican Casserole is a spicy, cheesy combination of ground beef, riced cauliflower, peppers, and a blend of cheeses. It’s a low carb, gluten free dinner recipe that’s easy to make and very flavorful.
Prep Time10 minutes
Cook Time35 minutes
Total Time45 minutes
Course: Main Course
Cuisine: Beef, Gluten Free, Low Carb
Servings: 6
Calories: 415kcal

Ingredients

  • 1.5 pounds ground beef * I use 96% lean
  • 1 teaspoon salt
  • 1/2 teaspoon pepper
  • 1 large head cauliflower * riced (about 5 cups)
  • 1 tablespoon extra virgin olive oil
  • 2 peppers * diced (red, orange, and/or yellow)
  • 1 jalapeno pepper * finely diced
  • 1 1/2 cups enchilada sauce
  • 1 1/2 cups pepper jack cheese * shredded
  • 1 cup cheddar cheese * shredded
  • cilantro * optional, garnish
  • sour cream * optional, for serving

Instructions

  • Preheat oven to 350°F.
  • Season the ground beef with the salt and pepper. Place a large skillet over medium-high heat and once hot, add the ground beef.
  • Cook, breaking up the ground beef as you go, until it’s cooked through and no longer pink in the center, about 5-7 minutes.
  • Add the ground beef to a large casserole dish with the riced cauliflower.
  • Return the pan to the stovetop and add the olive oil. Once hot, add the peppers. Cook for 2-3 minutes, stirring often, until just starting to blister.
  • Add the peppers to the casserole along with the enchilada sauce and pepper jack cheese. Stir until everything is well combined.
  • Top with the cheddar cheese.
  • Bake for about 20 minutes, or until the cheese is melted and the casserole is hot and bubbly.
  • Garnish with cilantro, if desired and serve with sour cream if you’d like.

Video

Notes

Tips and Techniques

  • To avoid added starch, shred the cheeses from block rather than using pre-shredded bagged cheese. It also melts better without the starch in it.
  • If you are unsure how to rice cauliflower, you can reference this post on How To Rice Cauliflower for 2 different methods.
  • Store leftovers tightly covered in the refrigerator. Use within 3-4 days.
 
* Nutritional information is an estimate and may vary.

Nutrition

Serving: 1g | Calories: 415kcal | Carbohydrates: 12g | Protein: 39g | Fat: 23g | Saturated Fat: 12g | Cholesterol: 115mg | Sodium: 1278mg | Potassium: 767mg | Fiber: 4g | Sugar: 8g | Vitamin A: 2073IU | Vitamin C: 95mg | Calcium: 378mg | Iron: 4mg