Dinner

Delicious Keto Taco Casserole Recipe

BySarah Summers November 24, 2025November 24, 2025

Introduction

This delicious keto taco casserole is a flavorful, low-carb meal perfect for busy weeknights. Packed with seasoned ground beef, fresh vegetables, and cheesy goodness, it’s a satisfying dish that the whole family will enjoy.

A white rectangular baking dish filled with a layered casserole. The bottom layer is made of ground meat mixed with corn and black beans, showing a chunky, dark brown texture spotted with yellow and black. On top of this is a layer of melted bright orange cheddar cheese, covering the meat evenly with a smooth, glossy look. Scattered over the cheese are sliced green jalapeños, chopped red tomatoes, and fresh green cilantro leaves, adding a fresh and colorful touch. In the center is a dollop of white sour cream, standing out against the warm colors of the dish. The dish is placed on a white marbled surface, and near the corner, a woman's hand is holding the side of the dish. Photo taken with an iphone --ar 4:5 --v 7

Ingredients

1 lb lean ground beef (or turkey)
2 medium bell peppers (red and green), chopped
1 medium onion, chopped
2 tablespoons taco seasoning
1 cup shredded cheddar cheese
14 oz can diced tomatoes (drained)
2 cups cauliflower rice

Instructions

Step 1: Preheat oven to 350°F (175°C).
Step 2: In a skillet, brown the ground beef over medium heat. Drain excess fat.
Step 3: Add onions and bell peppers to the skillet; sauté until softened.
Step 4: Stir in taco seasoning, diced tomatoes, and cauliflower rice; mix well.
Step 5: Layer half of the mixture in a baking dish and sprinkle with half of the cheese. Repeat layers with remaining mixture and cheese.
Step 6: Bake uncovered for 25–30 minutes until bubbling and golden on top.

Tips & Variations

For extra flavor, add a splash of lime juice or a handful of chopped fresh cilantro before serving.
Swap cheddar for pepper jack cheese if you prefer a bit of spice.
Use ground turkey for a leaner option.
If you want it spicier, mix in some chopped jalapeños or hot sauce with the vegetables.

Storage

Store leftovers in an airtight container in the refrigerator for up to 3 days. Reheat in the oven or microwave until warmed through. This casserole also freezes well; thaw overnight in the fridge before reheating.

How to Serve

A white rectangular baking dish filled with a layered casserole featuring a base layer of brown cooked ground meat mixed with corn and diced red peppers. On top is a thick layer of melted yellow-orange cheese spread evenly. Scattered fresh green cilantro leaves and sliced green jalapeño peppers cover the cheese layer. In the center is a dollop of white sour cream, creating a contrast. The dish is sitting on a white marbled surface. Photo taken with an iphone --ar 4:5 --v 7

Serve this delicious recipe with your favorite sides.

FAQs

Can I make this casserole ahead of time?

Yes, you can assemble the casserole and refrigerate it for a few hours before baking. Just add a few extra minutes to the baking time if baking straight from the fridge.

Is cauliflower rice necessary for this dish?

Cauliflower rice keeps this casserole low-carb and adds texture. You can substitute with cooked riced broccoli or omit entirely for a different version, but keep in mind the carb count will change.

Delicious Keto Taco Casserole Recipe

★★★★★

4.7 from 75 reviews

Author: Sarah
Total Time: 50 minutes
Yield: 4 servings 1x
Diet: Low Carb, Keto, Gluten Free

Description

This Delicious Keto Taco Casserole is a flavorful, low-carb meal perfect for taco lovers following a ketogenic lifestyle. Featuring seasoned ground beef, fresh bell peppers, onions, diced tomatoes, and cauliflower rice, all layered with melted cheddar cheese and baked to golden perfection, this casserole is a hearty and satisfying dinner option.

Ingredients

Scale

Meat and Vegetables

1 lb lean ground beef (or turkey)
2 medium bell peppers (red and green), chopped
1 medium onion, chopped

Seasoning and Other Ingredients

2 tablespoons taco seasoning
14 oz can diced tomatoes (drained)
2 cups cauliflower rice
1 cup shredded cheddar cheese

Instructions

Preheat Oven: Preheat your oven to 350°F (175°C) to prepare for baking the casserole.
Cook Ground Beef: In a skillet over medium heat, brown the ground beef (or turkey) until fully cooked. Drain any excess fat to keep the dish lean.
Sauté Vegetables: Add the chopped onions and bell peppers to the skillet with the cooked meat and sauté until the vegetables are softened and fragrant, about 5-7 minutes.
Add Seasoning and Mix: Stir in the taco seasoning, drained diced tomatoes, and cauliflower rice into the meat and vegetable mixture. Mix thoroughly to combine all flavors evenly.
Layer Casserole: In a baking dish, spread half of the mixture evenly, then sprinkle half of the shredded cheddar cheese on top. Repeat by layering the remaining mixture and cheese to form two layers.
Bake: Place uncovered in the preheated oven and bake for 25-30 minutes, until the casserole is bubbly and the cheese is melted and slightly golden on top.

Notes

Use lean ground turkey as a lighter alternative to beef if desired.
Make sure to drain excess fat after browning the meat to keep the casserole keto-friendly.
Cauliflower rice serves as a low-carb substitute for traditional rice and blends well with the taco flavors.
Adjust taco seasoning to taste depending on your spice preference.
Leftovers can be stored in the refrigerator for up to 3 days and reheated in the oven or microwave.

Prep Time: 15 minutes
Cook Time: 35 minutes
Category: Main Dish
Method: Baking
Cuisine: Mexican-inspired

Keywords: Keto taco casserole, low carb casserole, keto dinner, ground beef casserole, cauliflower rice recipe, Mexican keto recipe

Sarah Summers

Leave a Reply Cancel reply