If you're in a hurry to get dinner on the table and are looking for a quick and easy meal using 3 freezer ingredients, this mixed seafood tater tot casserole is perfect for you.
In a medium pan, heat the olive oil and butter. Add the sliced leek and sauté for 2-3 minutes until the edges are starting to turn brown.
1 tbsp olive oil, 1 tbsp butter, 1/2 leek
Add the mixed frozen vegetables and cook for 1-2 minutes. Stir in flour, cook for a minute, then gradually whisk in milk to create a creamy sauce.
1 cup frozen vegetables, 1/4 cup all-purpose flour, 1 1/2 cups milk
Season the filling to taste with parsley, salt, and pepper. Remove the pan from the heat and add the frozen seafood mix. Stir to combine (Note 1).
1 tbsp fresh parsley, 1 tsp salt, 1/4 tsp ground black pepper, 10 oz mixed seafood
Pour the seafood mixture into an ovenproof dish (8x6 inches), top with mini hash browns, and cover with puff pastry. Brush with egg wash.
1 1/2 cups mini hash browns
Bake in a preheated oven until the hashbrowns are golden brown and the filling is bubbly. Let the pie rest for 10 minutes before serving.
Notes
Note 1: You don't want the vegetables and seafood to be fully cooked at this point as they will cook in the oven. Otherwise, the vegetables will be mushy and the seafood can get tough and rubbery.Storage: Leftover seafood casserole can be stored in an airtight container in the refrigerator for up to 2 days. Reheat it in the oven or microwave in small interval until it's fully heated through. I don't recommend freezing it.