3 grilled tuna onions cilantro mayonnaise Recipes

chopped fresh cilantro, low-fat mayonnaise, ground ancho chile pepper, grated lime rind, fresh lime juice, ground chipotle chile pepper, olive oil, divided, thick) slices oso sweet or other sweet onion, red bell pepper, seeded and quartered, salt, divided, tuna steaks (about 3/4 inch thick ), ground cumin, freshly ground black pepper, sandwich buns, red leaf lettuce leaves

red onion, cider vinegar, sugar, fresh lime juice, divided, chopped cilantro, olive oil, thick) skinless mahimahi fillet or tuna steak, cut into 12 pieces, mayonnaise, crema or sour cream, corn tortillas, radishes, firm-ripe avocados, sliced green cabbage (1/2 small head ), lime wedges