Spring Vegetable Tart is a light and flavorful dish that showcases the vibrant colors and flavors of seasonal vegetables. This tart features a buttery and flaky pastry crust filled with a mixture of sautéed spring vegetables, such as asparagus, peas, and leeks. The filling is bound together with a creamy mixture of eggs, milk, and cheese. Baked until golden and set, this tart is perfect for brunch, lunch, or a light dinner.