Creating Easy Seafood Casserole can be both enjoyable and straightforward with the following detailed steps:

1. Preheat Oven: Start by preheating your oven to 375°F (190°C). This ensures an even bake once the casserole is ready.
2. Sauté Vegetables: In a large skillet, heat the olive oil over medium heat. Add the chopped onions and minced garlic, cooking until softened (about 3-4 minutes).
3. Combine Seafood: Add the mixed seafood to the skillet and cook for an additional 3-5 minutes, just until the seafood is cooked through but not overdone.
4. Mix Ingredients: In a large mixing bowl, combine the cooked rice, heavy cream, cheddar cheese, lemon juice, Old Bay seasoning, salt, and pepper. Stir well to combine.
5. Add Seafood: Carefully fold the seafood mixture into the rice mixture, ensuring everything is evenly blended.
6. Transfer to Casserole Dish: Lightly grease a 2-quart casserole dish. Pour the seafood mixture into the dish and spread it out evenly.
7. Add Topping (if desired): For extra texture, sprinkle breadcrumbs on top of the casserole.
8. Bake: Place the casserole in the preheated oven and bake for 30-40 minutes, or until the top is golden and bubbly.
9. Cool: Once baked, allow the casserole to cool for 10 minutes before serving to let it set.
10. Garnish: Top with freshly chopped parsley for color and added flavor.

Following these steps, you’ll create an Easy Seafood Casserole that is both delicious and visually appealing.