Chiles Jalapeños Rellenos de AtúnRicardo Muñoz, a talented chef from Mexico City, introduced me to this excellent appetizer. Fresh jalapeños are grilled, either on a stovetop grill pan or in a dry nonstick skillet, and then filled with a flavorful tuna mixture. Look for really large jalapeños that are often less hot than the smaller varieties, but don't count on it! Wear rubber gloves when cutting and seeding the chiles, and don't touch your face.