Fiesta Fajitas

Combine the marinade ingredients in a large ziplock bag, then add the tenderloins and toss them to coat. Place the sealed bag in the refrigerator and allow the tenderloins to marinate for at least an hour, but preferably overnight.

Prepare the grill for cooking. Brush the onion skewers and bell peppers with olive oil. Grill the vegetables until they are soft, about 20 minutes, and the tenderloins, turning them occasionally, until the centers register 145º, also about 20 minutes. Transfer all the food to a baking sheet and allow the tenderloins to rest for 5 minutes.

Meanwhile, remove the onion slices from the skewers. Chop them and the bell peppers, then arrange the vegetables on one side of a large serving platter. Slice the tenderloins into strips, then arrange them beside the vegetables.

Heat the foil-wrapped tortillas on the coolest part of the grill, turning them several times until they are warmed through. Serve the grilled vegetables, tenderloin strips, and tortillas with small bowls of the Fresh Pineapple Salsa , guacamole, and sour cream. Serves 8.