Broccoli Cauliflower Casserole
There’s the standard casserole, and then there’s this indulgent, cheesy broccoli cauliflower casserole. Bursting with veggies and rich flavors, this dish has something for everyone. We’ve loaded it up with enough vegetables to make it a convenient weeknight meal, perfect for leftovers or as the ideal potluck side. (If you enjoy adding protein, feel free to mix in 2 cups of shredded rotisserie chicken along with the veggies for an extra hearty version.)
Ingredients
- Unsalted butter or cooking spray
- 2 lb. cauliflower (about 1 medium head), cut into small florets
- 2 cups water, divided
- 1 lb. broccoli (about 2 large heads), cut into small florets
- 1/2 cup cream cheese, room temperature
- 3/4 cup sour cream
- 1/2 cup coarsely chopped sun-dried tomatoes
- 3 scallions, white and green parts separated, finely chopped
- 1 clove garlic, finely chopped
- 1 Tbsp. cornstarch
- 1 (1-oz.) ranch powder packet
- 1 tsp. crushed red pepper flakes (or similar spice of your choosing)
- Kosher salt
- Freshly ground black pepper
- 2 cups coarsely shredded or torn fresh mozzarella (about 16 oz.), divided
- 3/4 cup grated Parmesan (about 3 oz.)
Instructions
- Preheat oven to 350º. Grease a 13"-by-9" baking dish with butter.
- In a large heatproof bowl, combine cauliflower and 1 cup water. Microwave until tender, about 5 minutes. Drain and repeat with broccoli and remaining 1 cup water.
- In a large bowl, using a rubber spatula, stir cream cheese and sour cream. Stir in tomatoes, white scallion parts, half of green scallion parts, garlic, cornstarch, ranch powder, red pepper flakes, 1/2 teaspoon salt, and 1/4 teaspoon black pepper.
- Add broccoli and cauliflower, folding to combine and coat in sauce (it’s okay if veggies are warm, as this will help loosen sauce).
- Fold in 1 1/2 cups mozzarella. Pour into baking dish, spreading in an even layer. Sprinkle with Parmesan and remaining 1/2 cup mozzarella.
- Bake casserole 20 minutes. Turn oven to broil and broil on high until cheeses are browned, 4 to 6 minutes. Top with remaining green scallion parts and serve.
Tried this recipe?Let us know how it was!