This party-size vegetarian version of a sausage roll takes a bit of inspiration from potato- and pea-filled samosas: The filling is a coarse mash of peas and potato mixed with fresh ginger and green chiles, along with cumin, fennel and sesame seeds Seasoned with lemon juice and garam masala, it has a tangy, gently spicy flavor that’s even more sumptuous when it’s wrapped in buttery store-bought puff pastry Be sure to cut the roll almost all the way to the inner edge before sliding it into the oven, so that the baked pieces are easy to tear away