Lasagne Verdi con Pomodoro e Basilico

Lasagne is one of the richest dishes in the Italian repertory, but it need not, indeed it ought not, ever be cumbersome. It is too often, in its transplanted versions, overloaded with an ill-matching combination of cheeses, vegetables, sausages, and meat. The key to successful lasagne is deftness, using the solid pasta strips as a base for a simple composition of ingredients that evoke the spirit of the season. In Italy, in the spring, one might use young, purple artichokes; in the f