Grilled Eggplant, Tomato, and Pepper Salad

Love of barbecue cuts across race, nationality, and economic class. Some of my best informants have been taxi drivers, most of whom seem to come from other countries. This salad was inspired by a conversation with an Armenian cabbie in Philadelphia. He called it fasouli, which he said means crazy or all mixed up. He preferred to remain anonymous, so wherever he is, thanks for the tip.

The salad can be prepared up to a day ahead of time, but taste it just before serving and ad