Preparation Char bell peppers over gas flame or in broiler until blackened on all sides. Enclose in bag; let stand 10 minutes. Peel and seed peppers. Cut into 1/2-inch pieces. Transfer to large bowl. Add beans, olives, cheese and chopped oregano; toss to combine. Season salad with salt and pepper. Whisk vinegar, garlic and soy sauce in small bowl. Gradually whisk in oil. Season dressing with salt and pepper. Preheat broiler. Cut six 1/2-inch-thick lengthwise slices from center of eggplant. Arrange eggplant on baking sheet. Brush both sides of eggplant with some of dressing. Sprinkle with salt and pepper. Broil until golden, about 2 minutes per side. Place 1 eggplant slice on each plate. Spoon salad over. Drizzle with dressing. Garnish with oregano. Serve with pita.