Mexican Shrimp Ceviche: Jalapeños, red onions, cilantro, avocado, cucumber, and lime juice.Caribbean Ceviche: Shrimp, onions, parsley, mayo, ketchup, pepper, hot pepper sauce, and lime.Peruvian Ceviche: Fresh halibut, sweet potatoes, corn, yellow chili pepper, red onion, lemon, green onion, rocoto.