Prepare peanut butter and jelly sandwiches as you normally would. I used an assembly line style to prepare multiple sandwiches at once and have them ready for cutting.
Use a sandwich cutter to cut and seal each sandwich. Alternately, use a round cookie cutter or large jar lid to cut the sandwiches, then seal the edges using the tines of a fork.
Spread sandwiches on a single layer on a large baking sheet and flash freeze 1-2 hours.
Place frozen sandwiches in individual sandwich bags or wrap in plastic wrap. Freeze for up to 1 month.
Place frozen sandwiches in your child's lunch box in the morning and they will be thawed by lunch. Or defrost in microwave for 30 seconds. Enjoy!