Shrimp Mushroom Casserole (Printable)
Creamy baked shrimp and mushrooms with a golden crispy topping, ready in under an hour.
# What You'll Need:
→ Seafood
01 - 1 lb large shrimp, peeled and deveined
→ Vegetables
02 - 8 oz cremini or button mushrooms, sliced
03 - 1 small onion, finely chopped
04 - 2 cloves garlic, minced
05 - 2 tablespoons chopped fresh parsley
→ Dairy
06 - 1/2 cup sour cream
07 - 1/2 cup whole milk
08 - 1/2 cup shredded mozzarella cheese
09 - 1/4 cup grated Parmesan cheese
10 - 2 tablespoons unsalted butter
→ Pantry
11 - 2 tablespoons olive oil
12 - 2 tablespoons all-purpose flour
13 - 1 teaspoon paprika
14 - 1 teaspoon salt
15 - 1/2 teaspoon black pepper
16 - 1/2 teaspoon dried thyme
→ Topping
17 - 3/4 cup panko breadcrumbs
18 - 1 tablespoon melted butter
# Steps:
01 - Preheat oven to 375°F. Lightly grease a 1.5 to 2-quart casserole dish with butter or cooking spray.
02 - Heat olive oil and 1 tablespoon butter in a large skillet over medium heat. Add chopped onion and cook until softened, approximately 3 minutes.
03 - Add sliced mushrooms to the skillet and sauté until golden brown, about 5 minutes. Stir in minced garlic and cook for an additional minute until fragrant.
04 - Sprinkle flour evenly over the vegetable mixture, stirring constantly to coat. Cook for 1 minute to remove raw flour taste.
05 - Slowly pour in milk while whisking continuously to prevent lumps. Add sour cream, paprika, salt, black pepper, and dried thyme. Simmer until sauce thickens, 2 to 3 minutes.
06 - Stir in shrimp and cook until just beginning to turn pink, about 2 minutes. Remove from heat immediately as shrimp will finish cooking in the oven.
07 - Gently fold in mozzarella cheese, half the Parmesan, and fresh parsley. Transfer the entire mixture to the prepared casserole dish, spreading evenly.
08 - In a small bowl, combine panko breadcrumbs, melted butter, and remaining Parmesan cheese. Mix until well blended.
09 - Sprinkle topping evenly over casserole. Bake uncovered for 20 to 25 minutes until bubbly and golden brown on top.
10 - Allow casserole to rest for 5 minutes before serving. Garnish with additional fresh parsley if desired.
# Expert Advice:
01 -
- The sauce comes together faster than you expect, thanks to a simple roux technique that never fails
- Leftovers actually taste better the next day, making it perfect for meal prep
02 -
- Overcooking the shrimp in the skillet makes them rubbery, so pull them when they are just barely pink
- The sauce will look thin at first but thickens beautifully as it bakes
03 -
- Room temperature sour cream incorporates more smoothly into the sauce without any risk of separating
- Grating your own Parmesan makes a huge difference compared to pre grated varieties