This Spring Vegetable Quiche with Asparagus and Peas is a delightful savory tart perfect for celebrating fresh spring produce. Featuring a flaky pre-made pie crust filled with sautéed leeks, asparagus, peas, and a rich custard of milk, cream, and eggs, this quiche is topped with nutty Gruyere cheese for an elegant and flavorful dish. Light and satisfying, it is ideal for brunch, lunch, or a light dinner.