A gym stand usually has a table, an outlet and no kitchen. The breaks are short and there are several of them: between quarters, at the half, and between the JV and varsity games. Everything on this menu can be served in under a minute from a warmer, a cooler and a popcorn machine.
Food Hot Dog $4 Pizza Slice $4 Nachos & Cheese $5 Soft Pretzel $4 Snacks Popcorn $3 Chips $2 Candy Bar $2 Fruit Snacks $1 Drinks Bottled Water $2 Soda $3 Sports Drink $3
Example prices. Set your own from what your items cost you; the template is a layout and a starting list, not pricing advice.