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Spoonful of creamy cauliflower casserole topped with crispy bacon and crushed crackers lifted from a white baking dish.
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Cheesy Cauliflower Casserole

Tender cauliflower is baked in a creamy Alfredo cheese sauce, topped with buttery crackers, and finished with bold savory flavor from Montreal steak seasoning.
Course Lunch or Dinner
Cuisine American
Prep Time 15 minutes
Cook Time 25 minutes
Total Time 40 minutes
Servings 8 servings
Calories 278kcal
Author Deb Clark

Equipment

  • 1 9x13 casserole dish

Ingredients

  • 1 large head cauliflower cut into florets - about 8 cups
  • 15 ounces Alfredo sauce
  • 1 cup shredded cheddar cheese
  • ½ cup grated Parmesan cheese
  • ½ cup sour cream
  • 1 teaspoon Montreal steak seasoning
  • ½ cup crushed buttery crackers I used Cheez Its
  • 2 tablespoons melted butter for topping
  • ½ cup cooked crumbled bacon

Instructions

  • Preheat the oven to 375°F. Lightly grease a 9x13 baking dish.
  • Bring a large pot of salted water to a boil. Add cauliflower and cook for 5–6 minutes until just fork-tender. Drain really well (this matters—no watery casseroles here).
    Blanched cauliflower florets in a large pot of water surrounded by casserole ingredients on a countertop.
  • In a large bowl, combine the Alfredo sauce, sour cream, cheddar cheese, Parmesan, and Montreal steak seasoning. Stir until smooth and creamy.
    Shredded cheese, sour cream, mayonnaise, Parmesan cheese, and seasonings mixed together in a large glass bowl.
  • Add the cooked cauliflower to the bowl and gently toss until everything is evenly coated.
    Cooked cauliflower florets added to a creamy cheese mixture in a glass mixing bowl during casserole preparation.
  • Spoon the mixture into the prepared baking dish and spread evenly.
    Creamy cauliflower casserole mixture spread into a white baking dish.
  • Mix crushed crackers with melted butter and sprinkle over the top. Finish by topping with the crumbled cooked bacon.
    Cauliflower casserole topped with crushed crackers and crispy bacon before baking in a white casserole dish.
  • Bake uncovered for 25–30 minutes until hot and bubbly with a golden, crispy top.

Nutrition

Calories: 278kcal | Carbohydrates: 10g | Protein: 10g | Fat: 22g | Saturated Fat: 12g | Polyunsaturated Fat: 3g | Monounsaturated Fat: 5g | Trans Fat: 0.2g | Cholesterol: 74mg | Sodium: 736mg | Potassium: 282mg | Fiber: 2g | Sugar: 3g | Vitamin A: 379IU | Vitamin C: 35mg | Calcium: 195mg | Iron: 1mg
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