You should try these following dishes Momos Dum aloo
Hemp chutney
Thukpa
Every hill station has local thali for lunch which come along with chapathi, Phulkas, roti, naan and puri. Taste them with local dishes. Restraunant will help to order local dishes.
Rice like biryani, pulao are available. Street food - Don’t miss out on chai, coffee, chaat, boiled nuts, boiled corn along with seasonal fruits like berries and cherries.
At mountains u will get Pahari Dishes only. Apart from Maggie there are options of Samosa, Veg Pakora, at some places u may get option of Sabji Puri also.