Yes, you can. These fish fingers are freezer-friendly. Here's how to freeze the breaded fish sticks. 1. Let the fish sticks cool down at room temperature but no longer than two hours. 2. Place the fish sticks on a baking sheet in a single layer. Cover with a plastic wrap and freeze for about 2-4 hours or until firm. 3. Transfer the fish sticks into an airtight container or ziplock. Properly stored, they can last up to 18 months.