Cheesy Cauliflower Casserole

Looking for a hearty, cheesy side dish that’s both satisfying and packed with nutrients? This Cheesy Cauliflower Casserole is the perfect answer. Made with tender cauliflower florets, a rich blend of cheeses, and creamy sour cream, this dish is a healthier alternative to traditional potato casseroles while still delivering indulgent comfort food flavor.

Perfect for family dinners, potlucks, or holiday spreads, this casserole comes together with simple ingredients and minimal effort. Whether you’re following a low-carb lifestyle or just want a flavorful vegetable side dish, this recipe is bound to become a household favorite.

Why You’ll Love This Recipe

• Low-Carb Comfort Food: A great alternative to potato-based casseroles, perfect for keto and low-carb diets.
• Cheesy Goodness: Loaded with cheddar and Parmesan, it’s a cheese lover’s dream.
• Easy and Quick: Minimal prep with basic ingredients makes this a go-to side dish.
• Family-Friendly: Even picky eaters enjoy the creamy, cheesy flavor.
• Versatile Dish: Works for weeknight dinners, holiday meals, or meal prepping.

Ingredients Breakdown

Here’s what makes this casserole so delicious:

• Cauliflower: The star of the dish, cauliflower provides a tender base while keeping things light and nutritious.
• Cheddar Cheese (2 cups): Brings a bold, melty flavor. You can use sharp cheddar for stronger taste or mild cheddar for a creamier finish.
• Sour Cream (½ cup): Adds tanginess and helps create a creamy texture.
• Mayonnaise (¼ cup): Enhances creaminess and depth of flavor without overpowering.
• Parmesan Cheese (½ cup): Adds a salty, nutty flavor that complements cheddar.
• Green Onions (¼ cup): Provide freshness and a mild onion flavor.
• Garlic Powder & Onion Powder (½ tsp each): Boost flavor with a subtle savory note.
• Salt & Pepper: Essential for balancing flavors.

Tips and Tricks

• Drain the cauliflower thoroughly after steaming to avoid a watery casserole.
• Lightly mash the cauliflower instead of pureeing to keep some texture.
• Use freshly shredded cheese instead of pre-shredded for better melting and flavor.
• For a crispy topping, sprinkle extra cheddar or breadcrumbs before baking.
• Let the casserole rest for 5 minutes after baking so it firms up before serving.

Variations and Customizations

• Add Protein: Mix in cooked bacon, shredded chicken, or ground turkey for a heartier dish.
• Spicy Kick: Add diced jalapeños or a dash of cayenne pepper for extra heat.
• Broccoli-Cauliflower Mix: Use half cauliflower and half broccoli for more color and variety.
• Different Cheeses: Try mozzarella, Gruyère, or pepper jack for a unique flavor twist.
• Low-Fat Option: Use light sour cream and reduced-fat cheese for a lighter version.

Pairing Suggestions

This cheesy casserole pairs beautifully with:

• Grilled or roasted chicken
• Baked salmon or tilapia
• Pork chops or roast beef
• Holiday turkey or ham
• Fresh garden salad for balance

Storage Instructions

• Refrigerator: Store leftovers in an airtight container for up to 4 days.
• Freezer: Freeze tightly wrapped portions for up to 2 months. Thaw overnight before reheating.
• Reheating: Warm in the oven at 325°F until heated through, or microwave for quick reheating.

Popular Questions

Is cauliflower casserole keto-friendly?
Yes! This dish is low in carbs and perfect for keto diets when using full-fat ingredients.

Can I make this casserole ahead of time?
Absolutely. Prepare it up to the baking step, cover, and refrigerate for up to 24 hours. Bake just before serving.

Can I substitute Greek yogurt for sour cream?
Yes, Greek yogurt works well and provides extra protein while keeping the dish creamy.