There is only one small restaurant located in Camp no.1. You can get Chow Mein, Thukpa and momos.The food is tasty but Quantity cooked is very little and finishes fast.
Jungle are really very thick around Mainpat and its really quite, if you wanna get peace of mind and get out of bustling noises of cities, it is really a good place to hang around with friends.
There are some indian restaurants between Tibetan Camp no. 1 and 2. They sell Samosa, bajiya, balusai etc. rice and veggies