Yes! For freezing cooked fajitas, allow everything to cool and then transfer to freezer-safe storage like Souper Cubes. For freezing uncooked fajitas, prep and freeze marinated but uncooked chicken breasts in Stasher bags, use a vacuum sealer, or other freezer-safe containers. To cook frozen uncooked chicken fajitas - place the bag in a bowl and defrost in the fridge overnight. Cooking time remains the same.