I need ideas for snacks for work!

I work at a large retail chain so I can buy whatever groceries and snacks I want on break but I only get 15 minutes for breaks but I get a 1 hour lunch. Anyway, I keep finding myself buying chips or whatever that’s by the front registers. Can anyone suggest something better that will keep me full? I get so hungry! A supervisor suggested nuts but I don’t really like them and they get stuck in my teeth. Fruit isn’t really that filling, either. I feel stuck!