Shrimp au Gratin

Ingredients

• 1 tablespoon extra-virgin olive oil, or to taste
• 1 tablespoon butter
• 2 tablespoons all-purpose flour
• 2 cups milk
• 1 pinch ground nutmeg
• salt to taste
• 30 uncooked medium shrimp, peeled and deveined
• 4 teaspoons Italian seasoning, divided
• 1 cup shredded Cheddar cheese
• 1 shallot, thinly sliced
• 1 tablespoon chopped fresh parsley, or to taste
• 0.5 cup dry bread crumbs
• 0.5 cup grated Parmesan cheese

Steps

1. Preheat the oven to 350 degrees F (175 degrees C).
2. Heat olive oil and butter in a large skillet over medium-high heat until butter melts. Reduce heat to medium, whisk in flour, and stir until a thick paste forms, about 5 minutes. Gradually whisk in milk and bring to a simmer. Cook and stir until sauce is thick and smooth, 5 to 10 minutes. Season with nutmeg and salt.
3. Place shrimp in a casserole dish and coat with 3 teaspoons Italian seasoning. Season with salt. Cover with sauce and sprinkle with Cheddar cheese. Add shallot, remaining 1 teaspoon Italian seasoning, and parsley on top. Sprinkle with bread crumbs, followed by Parmesan cheese.
4. Bake in the preheated oven until crisp, about 25 minutes.