Traditionally, ceviche is raw fish that’s "cooked" by marinating it in acidic citrus juice. Here we quickly poach the tilapia then marinate it with fresh herbs, lime juice and crunchy vegetables for an easy summer dinner. Make it a meal: Serve with warm corn tortillas and Blueberry-Lime Margaritas.
Make Ahead Tip: Cover and refrigerate for up to 2 hours.