Keto ground beef casserole is our most popular low-carb ground beef dinner—packed with flavor and ready quickly. This keto casserole is simple enough for weeknights, family-friendly, and stores well, making it a great option for meal planning or prep.
Keto Ground Beef Casserole
Although this casserole is low in carbs, it’s full of familiar, comforting flavors that the whole family will enjoy. It’s a kid-friendly dish that saves you from cooking multiple meals in a night. The casserole comes together quickly and bakes to a golden, cheesy finish that makes for a satisfying dinner any day of the week.
What’s in this Keto Casserole
- Cauliflower rice
- Ground beef
- A handful of spices
- Sour cream
- Cheeses (Monterey Jack and sharp cheddar)
- Tomato sauce
With cauliflower rice, seasoned ground beef, a creamy binder, and plenty of cheese, this casserole delivers classic comfort-food taste in a low-carb format. If you want a new ground beef recipe to add to your rotation, this casserole is worth trying.
The combination of melted cheese and savory beef makes for a rich, satisfying texture. For a bolder flavor, top with sliced jalapeños, diced tomatoes, or avocado right before serving. Those additions add freshness and heat for anyone who wants a little more bite.
How Long Does This Low-Carb Ground Beef Casserole Take To Cook?
Think of this as a 30-minute meal. The casserole needs roughly 30 minutes in the oven; during that time the edges will bubble and the cheese will brown to a beautiful golden color. Let it rest a few minutes after baking—because the creamy binder firms up as it cools, making it easier to serve.
What To Serve With This Low-Carb Casserole
- Crisp green salad
- Dinner rolls or keto-friendly bread if you prefer
- Additional steamed or roasted vegetables
More Dinner Ideas
- Kitchen Sink Casserole — a hearty, comforting bake loaded with lots of ingredients.
- Keto Shrimp Creole — a quick, spicy shrimp dish with Cajun flair.
- Taco Pie — a keto-friendly taco casserole perfect for casual weeknight meals.
Can I Use Homemade Cauliflower Rice?
Yes. Homemade cauliflower rice works great if you have the time or prefer it fresh. Frozen riced cauliflower is a convenient and effective substitute and will give excellent results in this recipe.
How To Serve This Ground Beef Casserole
Finish the casserole with a scattering of sliced green onions for color and a fresh bite. You can also add a drizzle of hot sauce or top with jalapeño, tomato, or avocado for extra flavor. These toppings pair especially well with keto ground beef dishes.
How To Store Leftovers
Store leftovers in the refrigerator for up to three days. This casserole reheats well and makes a convenient lunch or dinner during a busy week—ideal for meal prep.
Making the Recipe
Keto Ground Beef Casserole
A cheesy, comforting keto ground beef casserole that’s easy to prepare and full of satisfying flavor.
Ingredients
- 1 (12 ounce) package frozen riced cauliflower
- 2 pounds ground chuck
- 1 onion, chopped
- 1 (15 ounce) can tomato sauce
- ½ teaspoon ground cumin
- 1 teaspoon garlic powder
- ½ teaspoon chili powder
- 1 teaspoon salt
- ½ teaspoon black pepper
- ½ cup sour cream
- 1 cup shredded Monterey Jack cheese
- 3 eggs
- 2 cups shredded sharp cheddar cheese
- Sliced green onions, for garnish
Instructions
- Preheat the oven to 350°F (175°C). Prepare a 9×13-inch casserole dish with nonstick spray.
- In a large skillet over medium-high heat, cook the ground beef with the chopped onion and the spices (cumin, garlic powder, chili powder, salt, and pepper) until the beef is browned. Drain any excess fat.
- Remove the skillet from the heat and stir in the riced cauliflower. Transfer the mixture to the prepared baking dish.
- Whisk the eggs and sour cream together, then pour this mixture over the beef and cauliflower. Gently stir to combine and spread evenly in the dish. This mixture acts as a binder so the casserole holds together when served.
- Spoon the tomato sauce over the top and spread it evenly. Sprinkle the Monterey Jack and sharp cheddar cheese evenly over the sauce.
- Bake for about 30 minutes, or until the cheese is melted and the edges are bubbly and golden.
- Remove from the oven, let cool for a few minutes, then garnish with sliced green onions and serve.
Nutrition Information (per serving)
Yield: 12 — Serving Size: 1
Calories: 443 • Total Fat: 32g • Carbohydrates: 4g • Net Carbs: 3g • Fiber: 1g • Protein: 34g
Nutrition facts are estimates and may vary based on brands and exact ingredients. For precise tracking, use your preferred nutrition calculator with exact product labels.