Yes! It's great to make a larger batch of tuna cakes, cook (or bake), and cool completely. Then arrange them on a large baking sheet and freeze for 2 hours. Next, remove them from the sheet and place in a ziploc bag. Seal well by squeezing out as much air as possible. Label the bags and place them in a freezer for up to 3 months. Thaw in the fridge and reheat before serving.