It looks like an ordinary veggie burger. The bun is an ordinary bun, gently toasted and glistening with grease. Served on paper, this bun pulls strongly on childhood fast-food memories. The patty doesn’t look like meat, of course, but it doesn’t look too crazy on the outside, either. Maybe the lack of lettuce, tomato or onion is a giveaway that truly transporting flavors are about to hit your tongue. This is dabeli, a chaat from Gujarat that has become one of Rajwadi’s two signature sandwiches. That veggie burger patty is, in fact, mashed sweet potatoes dosed with a brace of curry seasonings. It contains pomegranate seeds for sweet-tart balance, roasted peanuts for crunch and red onions because everything is better with red onions. Fiery-hot, refreshing, crunchy, soft, sinful and vegetarian all at the same time, dabeli is an ingenious snack like nothing else in the world. And, for $5, it is very filling. Rajwadi’s other iconic sandwich is the samosa sandwich ($4.49), a samosa smashed flat and placed on another toasted bun. Hey, it tastes better than it sounds. This is a classic chaat because it adds a little texture and a lot of portability to the samosa. Rajwadi is tucked inside an Indian supermarket with a small but excellent selection of groceries. The sweets are worth trying, and you shouldn’t leave without exploring the frozen meals section, in which $2.50 for a dinner counts as expensive. You also shouldn’t leave the restaurant area without trying sabudana vada ($4.49), crisply fried fritters made with mashed potatoes, tapioca pearls and cilantro. They’re an outstanding snack, and they come with two chutneys, one sweet, the other hot.