3 tuna sandwiches onions chile 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

albacore tuna in water, drained and flaked, red onion, diced, fresh oregano, minced, fresh rosemary, minced, diced green chile pepper, black pepper to taste, red pepper hummus