String cheese, fruit, dried fruit, apples with peanut butter, peanut butter crackers. I've been giving mine a choice of two or three things and letting them decide otherwise they just make a mess and don't eat anything. Once you see what he likes you can offer that and something new and see what he likes. Their are lots of kid snack and food ideas online
Apple slices with peanut butter, peanut butter jelly crackers, fruit salad, pretzels, yogurt bites, yogurt with fruit, peanut butter and jelly smeared on a tortilla then roll it up,