Cheesy Ground Beef Cauliflower Casserole

Cheesy ground beef and roasted cauliflower casserole layered with marinara and sour cream, then baked until bubbling for an easy weeknight dinner.

Prep: 15 min · Cook: 45 min · Yield: 6 · Method: Oven

Ingredients

• 1 lb ground beef
• 1 head cauliflower
• 1 cup marinara sauce
• 1.5 cups cheddar cheese
• 0.5 cup sour cream
• 3 cloves garlic
• 1 tablespoon olive oil
• 1 teaspoon kosher salt
• 0.5 teaspoon black pepper

Cooking instructions

1. Heat the oven to 425°F. Cut the cauliflower into bite-size florets, toss with olive oil, half the salt, and pepper, and spread on a rimmed baking sheet. (about 5 min) — 425°F
2. Roast the cauliflower for 20 minutes, stirring once, until browned at the edges and tender-crisp. (about 20 min) — 425°F
3. While the cauliflower roasts, brown the ground beef in a large oven-safe skillet over medium-high heat, breaking it into small pieces, until no pink remains and it reaches 160°F. Drain excess fat if needed. (about 8 min) — 160°F
4. Reduce the heat to medium. Add the minced garlic and cook for 30 seconds, then stir in the marinara, sour cream, and remaining salt until smooth and hot. (about 2 min) — Medium heat
5. Fold the roasted cauliflower into the beef mixture, then spread it evenly in the skillet and top with the cheddar cheese. (about 2 min)
6. Bake for 20 minutes, until the cheese is melted and the casserole is bubbling around the edges. Rest for 5 minutes before serving. (about 20 min) — 375°F