I voted for photos as well... I believe that 1. They shouldn't have to redo their work - it wasn't their fault school was canceled, and 2. They should enjoy the fruits of their labor. If they freeze the food, it may not be as good, and that could make them look bad (again, not their fault). If the teacher makes them so it again, I'd say it's not possible and ask for a simpler, less time-sensitive project, like crafts or a paper - maybe demonstrate a dance from that country (they could so that anyway for extra credit if they want). In Brad's case, I'd also send in the recipes as further proof of his efforts.