Protein Skillets | Recipes

Cheesy Ground Beef & Cauliflower Casserole

ByScience Meets Supper August 11, 2026August 11, 2026

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Cheesy Ground Beef & Cauliflower Casserole

A hearty, low-carb casserole with savory seasoned ground beef, tender cauliflower, and a cheesy, flavorful finish. Ready in just 30 minutes.

Course Main Course

Cuisine American

Keyword Egg-Free, Gluten-Free, High-Protein, Low-Carb, No Added Sugar, Nut-Free, Soy-Free

Prep Time 30

Total Time 30

Servings 4

Calories 351

Equipment

Large broiler-safe skillet

Ingredients

1 tablespoon extra-virgin olive oil

½ cup chopped onion

1 medium green bell pepper, chopped

1 pound lean ground beef

3 cups bite-size cauliflower florets

3 cloves garlic, minced

2 tablespoons chili powder

2 teaspoons ground cumin

1 teaspoon dried oregano

½ teaspoon salt

¼ teaspoon ground chipotle

1 (15 ounce) can no-salt-added petite-diced tomatoes

2 cups shredded extra-sharp Cheddar cheese

⅓ cup sliced pickled jalapeños

Instructions

Position rack in upper third of oven. Preheat broiler to high.

Heat 1 tablespoon oil in a large broiler-safe skillet over medium heat. Add ½ cup onion and 1 bell pepper; cook, stirring, until softened, about 5 minutes. Add 1 pound beef and 3 cups cauliflower; cook, stirring and breaking the beef up into smaller pieces, until it is no longer pink, 5 to 7 minutes. Stir in 3 cloves garlic, 2 tablespoons chili powder, 2 teaspoons cumin, 1 teaspoon oregano, ½ teaspoon salt and ¼ teaspoon chipotle; cook until fragrant, about 1 minute. Add 15 ounces diced tomatoes and their juices; bring to a simmer and cook, stirring occasionally, until liquid is reduced and the cauliflower is tender, about 3 minutes more. Remove from heat.

Sprinkle 2 cups cheese over the beef mixture and top with ⅓ cup sliced jalapeños. Broil until the cheese is melted and browned in spots, 2 to 3 minutes.

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