You can make following :
Paratha roll / filled paratha roll of daal , potatoe etc
channa chat - with boiled potatoes and raw tomatoes chopped and mixed with it.
dahi baras
fruit chat ( if you mix some lemon juice i believe that fruits will remain fresh for long)
aloo ki chaat. (just slice some potatoes thinly put them in a utensil add some salt , some red chilli powder and some oil - dont add water and put on low flame let it cook in its own water garnish with hara dhaniya ) u can add raw onions and tomatoes later in it if u want.