Definitely! You may either store them cooked or uncooked. To store uncooked fish sticks, place them on a baking sheet, about ½ inch apart, and freeze them. Once frozen, place them in a freezer-safe bag for up to 3 months. To store cooked fish sticks, allow them to completely cool. Place them on airtight containers or Ziplock bags and refrigerate them for up to 3 days or keep them frozen for up to 2 months.