✔ 1 lb (450g) salmon fillet, skin removed and cut into chunks
✔ ½ lb (225g) shrimp, peeled and deveined
✔ 1 teaspoon salt
✔ ½ teaspoon black pepper
✔ ½ teaspoon smoked paprika
✔ ½ teaspoon garlic powder
✔ 1 tablespoon lemon juice
For the Creamy Sauce:
✔ 2 tablespoons butter
✔ 1 small onion, finely chopped
✔ 3 cloves garlic, minced
✔ 1 cup (240ml) heavy cream or half-and-half
✔ ½ cup (120ml) milk
✔ 1 tablespoon Dijon mustard
✔ ½ cup (50g) grated Parmesan cheese
✔ ½ teaspoon red pepper flakes (optional, for spice)
✔ 1 teaspoon dried parsley or fresh chopped parsley
✔ ½ teaspoon dried thyme
For the Casserole Base:
✔ 2 cups cooked rice or pasta (such as penne or fettuccine)
✔ ½ cup shredded mozzarella or cheddar cheese (for topping)
✔ ½ cup breadcrumbs (for a crispy topping, optional)