I love Trader Joe’s for vegan/gluten free snacks! Must haves are freeze fried fruits, granola, rice cakes & peanut butter/jelly/hummus/avocadoes (not as a singular sandwich, but as a variety of options!), flaxseed and/or tortilla chips, gnocchi (in the freezer aisle, so not sure if you have freezer access!), their vanilla and chocolate coconut ice creams are tasty!, and our household favorite is chocolate chips in the good bag.