When you’re craving something warm, cheesy, and seriously comforting, this Keto Cheesy Broccoli & Sausage Casserole hits the spot! Packed with tender broccoli, cauliflower, savory smoked sausage, and a rich homemade cheese sauce, it’s an easy dinner that comes together without much fuss.
The combination of melted cheddar, mozzarella, cream cheese, and heavy cream creates a creamy, bubbly sauce that coats every bite. Leave out the carrots for a lower-carb option, or include them if you enjoy their touch of sweetness.
🛒 Ingredients
Serves: 4–5
🥦 Vegetables
- 2 cups broccoli florets
- 2 cups cauliflower florets
- ½ cup sliced carrots, optional
🥩 Protein
- 1–1½ cups smoked sausage, sliced
🧀 Cheese Sauce
- 1 cup shredded cheddar cheese
- ½ cup shredded mozzarella
- ½ cup heavy cream
- 2 tablespoons cream cheese
- 2 tablespoons butter
- 2 cloves garlic, minced
🧂 Seasoning
- Salt and black pepper, to taste
- ½ teaspoon paprika
- ½ teaspoon Italian seasoning
👩🍳 Instructions
1. Prepare the Vegetables
Preheat your oven to 375°F (190°C).
Steam or microwave the broccoli and cauliflower for about 3–5 minutes, just until they begin to become tender. If using carrots, cook them with the vegetables.
Drain everything very well. Removing excess water is important because it helps prevent a watery casserole.
2. Brown the Sausage
Heat a large skillet over medium heat and add the sliced smoked sausage.
Cook for a few minutes, turning occasionally, until lightly browned. Remove the sausage from the skillet and set aside.
3. Make the Cheese Sauce
Using the same skillet, melt the butter over medium-low heat.
Add the minced garlic and sauté briefly until fragrant. Pour in the heavy cream and add the cream cheese. Stir until the cream cheese has melted and the mixture is smooth.
Add the cheddar and mozzarella gradually, stirring until the cheese melts into a thick, creamy sauce. Season with paprika, Italian seasoning, salt, and black pepper.
4. Assemble the Casserole
Add the broccoli, cauliflower, and browned sausage to a baking dish.
Pour the creamy cheese sauce over everything and gently toss until the vegetables and sausage are evenly coated.
5. Bake
Sprinkle a little extra shredded cheese over the top if desired.
Bake uncovered for 20–25 minutes, until hot, bubbly, and golden around the edges.
For an extra golden cheesy topping, broil for 2–3 minutes, watching carefully so it doesn’t burn.
Let the casserole rest for a few minutes before serving.
⭐ Tips for Success
- Drain the vegetables well. Excess moisture is the biggest cause of watery casseroles.
- Skip the carrots for strict keto. They add a little more carbohydrate than broccoli and cauliflower.
- Don’t overcook the vegetables. They will continue cooking in the oven.
- Use freshly shredded cheese when possible for a smoother cheese sauce.
- Keep the heat fairly low when melting the cheese to help prevent the sauce from becoming grainy.
- Choose a smoked sausage with a carbohydrate count that fits your dietary needs.
🌶️ Easy Variations
Add cooked bacon for extra smoky flavor, or stir in a little diced jalapeño for some heat.
You can also substitute part of the cheddar with Monterey Jack, Colby Jack, or pepper jack cheese.
For extra protein, use a little more sausage or add cooked shredded chicken.
🧊 Storage & Reheating
Store leftovers in an airtight container in the refrigerator for up to 3–4 days.
Reheat individual portions in the microwave or warm the casserole in a covered oven-safe dish until heated through.
🍽️ Serving Suggestions
This casserole is hearty enough to serve as a complete meal, but it also works beautifully alongside grilled chicken, steak, or roasted meat.
For a simple low-carb dinner, serve it with a fresh green salad or your favorite keto-friendly side.
📋 Recipe Information
Prep Time: 15 minutes
Cook Time: 20–25 minutes
Total Time: About 40 minutes
Servings: 4–5
Cuisine: American
Category: Casserole / Dinner
❤️ Final Thoughts
This Keto Cheesy Broccoli & Sausage Casserole is the kind of easy comfort food that makes weeknight dinners feel special. Tender vegetables, smoky sausage, and plenty of creamy melted cheese come together in one bubbling casserole dish.
It’s simple, satisfying, and easy to customize based on what you have in the fridge. Skip the carrots for a lower-carb version, add extra cheese for an indulgent topping, and make it your own! 🥦🧀🔥