Sel roti is a traditional donut shaped Nepali fried bread served as a confectionery item in festivals such as Tihar (Dipawali), during wedding parties and other ceremonies. It is essential food in most of Nepalese cultural and traditional events.
MoMo masala is a mixture of spices which gives Nepali momos its distinct flavour. If you're preparing momos regularly, the masala provides a convenient way to spice up your momos without the fuss of preparing multiple ingredients in each instance.
Aloo achar is a type of pickle made with potatoes. Pickle is an integral part of Nepali cuisine with lot of variations which consists of different flavour, textures and ingredients, depending on where/when it is served.