Cut each eggplant in half lengthwise. Lightly score cut sides of eggplant. Place eggplant, cut sides down, on grill rack coated with cooking spray. Grill 20 minutes or until very tender, turning occasionally. Scoop pulp from eggplant halves, and place in a sieve over a bowl. Discard peels. Let pulp stand 1 hour or until cool and thoroughly drained. Discard liquid. Coarsely mash pulp, and place in a small bowl. Stir in tomato and remaining ingredients. Serve at room temperature, stirring just before serving.