After cooking, allow to cool completely. Divide the creamy tuna pasta bake into individual portions and freeze in separate freezer-friendly airtight sealed containers for up to 3 months. Thaw overnight in the fridge. When ready to bake, preheat oven to 375°F/190°C. Place the pasta bake portion in an oven-safe dish and cover with a sheet of aluminum foil. Bake for about 20 minutes or until hot throughout.