What are the key ingredients in a traditional Mexican ceviche?

What are the key ingredients in a traditional Mexican ceviche?

The key ingredients in a traditional Mexican ceviche are fresh raw fish or seafood (such as shrimp, snapper, or tilapia), lime juice, onions, tomatoes, cilantro, and chili peppers. These ingredients are combined and marinated together, allowing the acidity of the lime juice to "cook" the fish or seafood, resulting in a flavorful and refreshing dish. Additional ingredients such as avocado, cucumber, and garlic may also be included to enhance the taste and texture of the ceviche.