Welcome the arrival of spring by hosting a casual dinner party for friends. Our menu features recipes that highlight springtime produce at its seasonal best. When your guests arrive, serve crisp radishes topped with chervil butter, plus green goddess dip laced with chives, tarragon, basil and other garden-fresh herbs. For the main course, we put a delicious new twist on lasagna: Each diner is served an individually assembled portion made with tender asparagus spears, thinly sliced prosciutto and three types of cheeses. End the meal with strawberry shortcake, and savor the light, fresh flavors of the new season.