We had people coming over the other night for drinks and snacks on short notice and I didn’t have anything planned. I happened to have some puff pastry in the refrigerator, which I quickly rolled out into a rectangle (the idea was to have crispy sides), baked for a few minutes, and then topped with sliced mozzarella, fresh tomatoes, a drizzle of olive oil and a sprinkle of salt and pepper. I did another one with pesto and mozzarella (the idea is to use on hand), which was also a hit with hungry kids, while I rummaged around to make dinner for the adults.