Loaded Broccoli Cauliflower Casserole

4.82 from 11 votes

Loaded Broccoli Cauliflower Casserole

This Loaded Broccoli Cauliflower Casserole features frozen broccoli and frozen cauliflower that are steamed and then combined with a creamy cheese sauce and bacon before being baked to golden, bubbling perfection. It's made in only 30 minutes and is a delicious weeknight dinner choice or even an easy holiday side dish!

Prep Time10

Cook Time20

Total Time30

Course: Main Dish

Cuisine: American

Keyword: broccoli and cauliflower bake, broccoli cauliflower casserole, broccoli cauliflower cheese casserole

Servings: servings

Calories: 380kcal

Author: Sara Nelson

Ingredients

12 ounce bag frozen cauliflower florets
10 ounce bag frozen broccoli florets
4 bacon slices
⅔ cup sour cream
4 ounces cream cheese softened
2 Tablespoons mayonnaise
¼ teaspoon garlic powder
¼ teaspoon pepper
⅛ teaspoon onion powder
⅛ teaspoon paprika
1 ½ cups shredded sharp cheddar cheese
½ cup shredded mozzarella cheese

Garnish:

2 Tablespoons finely chopped green onions

Instructions

Preheat Oven And Preparing Baking Dish: Place oven rack on middle rack, preheat oven to 450 degrees F, and generously coat 8x8-inch baking dish in nonstick cooking spray.
Steam Frozen Vegetables: Microwave frozen cauliflower florets then frozen broccoli florets until tender, according to instructions on bags.
Cook Bacon: While vegetables cook, in a large skillet over medium heat, cook bacon until crispy. Transfer cooked bacon to a paper towel-lined plate, then crumble into pieces.
Mix Casserole Ingredients Together: In a small mixing bowl, stir together shredded cheeses. Then, in a separate mixing bowl, mix together sour cream, cream cheese, mayonnaise, and spices. Open bags of steamed vegetables and pour out any extra water. Then, into bowl of cream sauce, fold in veggies, half of the crumbled bacon, and ~1 cup of shredded cheese mixture.
Transfer Mixture To Baking Dish: Transfer cream sauce mixture to prepared baking dish and, using a rubber spatula, spread into an even layer. Sprinkle remaining shredded cheese mixture, then remaining bacon crumbles on top.
Bake Casserole: Cover dish with foil, transfer to oven, and bake for 12-15 minutes. Then, remove foil, move oven rack to top rack and turn on oven broiler. Broil casserole until cheese on top is bubbly and golden, about an additional 1-2 minutes, watching carefully to ensure it doesn’t burn.
Garnish And Serve: Remove dish from oven, allow casserole to cool slightly before garnishing with chopped green onions and serving.

Video

Notes

Making Recipe In Advance: You can complete steps 1 to 4 ahead of time. Refrigerate for up to 24 hours. Remove the dish from the refrigerator 15-20 minutes before baking. Cover it with aluminum foil and proceed with step 5 of the recipe to finish cooking.

Refrigerator Storage: Store the casserole in an airtight container in the refrigerator for 3-4 days.

Freezer Storage: Store the cooked casserole in an airtight freezer-safe container for up to 3 months. Let it thaw in the refrigerator overnight before reheating.

Reheating Instructions: For best results when reheating, transfer the casserole from your storage container to a baking dish and bake in the oven at 425 degrees F until warmed throughout. You can also microwave a single serving for 60-90 seconds (depending on the wattage of your microwave).

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