Pav Bhaji is a popular street food made by mashing boiled vegetables like potatoes, peas, cauliflower, and carrots into a flavorful tomato-onion masala. The vegetables are cooked with spices like pav bhaji masala, cumin, and garam masala, then served with butter-toasted pav buns. Garnish with coriander, lemon, and onions for a delicious, satisfying meal.