Simple Sub: Use any combination of colorful, flavorful tomatoes from your farmers' market.
Serve with Crispy Pita Chips: Preheat oven to 375°. Split 2 whole-wheat pitas in half horizontally. Brush rough sides of pita halves with 1½ tablespoons olive oil; sprinkle with ¾ teaspoon cracked black pepper and ¼ teaspoon kosher salt. Cut each pita half into 8 wedges. Arrange in a single layer on baking sheet; bake at 375° for 14 minutes or until browned at edges and crisp.