Tortillas, warmed • sour cream • Yellow rice • -- OR --- • uncooked white rice • finely chopped fresh cilantro • lime zest, plus 1 Tbsp. lime juice • bell peppers, thinly sliced • poblano pepper, seeds and ribs removed, thinly sliced • red onion, thinly sliced • tomato • can black beans, drained and lightly rinsed •