Sopa de Habas
When families in Mexico give up meat—either for Lent or for other reasons—they turn to soups like this one. You might have trouble finding fresh favas, though Latin markets frequently stock them, especially in spring, and I’ve even seen them at supermarkets in recent years. Their wonderful flavor has no exact match, but fresh peas are a good substitute. The best chile for this dish is the mildly hot dried chile negro; it’s best when toasted, which is an easy enough process: put the chiles in a dry, ungreased skillet over medium heat and cook, turning as each side browns, until browned and fragrant, 5 to 10 minutes.