The main ingredient used in the preparation of salsa is tomatoes. Salsa is a versatile condiment that typically combines fresh tomatoes with ingredients such as onions, cilantro, lime juice, and various spices or peppers for flavor. The use of tomatoes provides a juicy base and rich flavor, making salsa a popular addition to many dishes. Variations can also include fruits like mango or pineapple for a sweeter version. Salsa can be enjoyed fresh (pico de gallo) or cooked and is commonly served with tortilla chips or as a topping for tacos and grilled meats.