These romantic tomato heart tartlets are a perfect Valentine's Day appetizer. The recipe calls for sun-dried tomato pesto, grape tomatoes, Asiago cheese, garlic, and fresh basil. The process includes preheating the oven, salting the tomatoes, unrolling the pastry, cutting out heart shapes, rolling up the borders, spreading the pesto, adding the cheese, draining the tomatoes, and combining them with the basil. The hearts are then baked in the oven until golden brown. The recipe can be prepared ahead of time by thawing the pastry, preparing the tomatoes, and grating the cheese.