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A plated piece of low carb taco casserole with toppings.
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5 from 3 votes

Easy Keto Taco Casserole Recipe

Lean ground beef mixed with onion, taco seasonings, olives, black soy beans and cheese. Layer in a casserole dish with low-carb tortillas, top with more shredded cheddar and bake. This quick, easy dinner will quickly become a family favorite!
Prep Time15 minutes
Cook Time15 minutes
Total Time30 minutes
Course: Dinner, Main Course
Cuisine: American, Mexican
Keyword: 30 Minute Dinner, Easy Low Carb Casserole, Keto Casserole, Keto Ground Beef Casserole Recipe, Low Carb Taco Casserole Recipe, Mexican Casserole, Mexican Ground Beef Casserole
Servings: 6
Calories: 394kcal
Author: Stacey Adams

Equipment

  • 8 x 8" baking dish
  • Large skillet

Ingredients

  • 1 lb. ground beef *93/7
  • small white onion *diced
  • ½ cup taco seasoning *see note below
  • ½ cup water
  • 1 small lime *juiced
  • 2 cups shredded cheddar cheese *divided
  • 1 2.25oz can black olives *drain and rinse
  • 1 15oz can black soy beans *drain and rinse *see note below
  • 15 low carb taco shells *see note below

Optional toppings:

  • diced tomato, pico de gallo salsa, chopped green onions, sliced jalapeno peppers, sour cream, avocado slices, guacamole, lettuce, red onion, baja sauce.

Recipe notes:

Taco seasoning: make your own taco seasoning or use your favorite store bought brand! I prefer a mild seasoning mix, but if you like it spicy - go for a hot blend! You can also add red pepper flakes to heat things up.
Black soy beans: sub regular black beans if preferred, but keep in mind that they have a higher carb count. Black soy beans taste pretty much identical to regular black beans in soups and casseroles. They are typically easier to find in health foods stores like Natural Grocer or Whole Foods. You can also buy them on Amazon!
Low carb taco shells: I like to buy this brand of taco shells. You can get them on Amazon or at the store (I normally find them right beside the regular taco shells)!

Instructions

  • Preheat oven to 350°F.
  • Dice onion into small pieces. Drain and rinse both black soy beans and olives. (*Note: canned black soybeans will most likely come in a jelly like substance - this is normal and is the product of soybeans soaking in water).
  • Brown ground beef on the stovetop over medium heat. Use a large skillet so you have plenty of room for additional ingredients (a large pot will also work if you don't have a big skillet).
  • Mix onion into the meat and cook the two together until onion softens (5-10 minutes).
  • Add taco seasonings, water, lime juice, half of your shredded cheese, black soy beans and olives to the skillet (reserve a handful of olives to sprinkle on top if desired). Mix everything together.
  • Remove skillet from the heat.
  • Create three layers of low carb taco shells and ground beef mixture in an 8 x 8 casserole dish, starting with shells and ending with taco filling. Top with remaining cheese and black olives (if you reserved some from step 5).
  • Bake for 10-15 minutes until cheese is melted. Allow to cool!
  • Cut into squares and plate. Add desired toppings and enjoy.

Storing leftovers:

  • Leftovers are perfect for meal prep and make great, easy lunches! Simply cut cooled taco casserole into pieces and refrigerate in an airtight, food-storage container for up to 3-4 days.

Nutrition

Serving: 1/6th of recipe *does not include toppings. All values are approximate. Net carbs = approximately 10.8 per serving. | Sugar: 2.9g | Fiber: 17.7g | Calories: 394kcal | Fat: 19.8g | Protein: 36.5g | Carbohydrates: 28.5g