OliveOil & Walnut Pesto: Pulse basil, walnuts, cheese, olive oil, lemon juice and garlic in food processor until blended. Place in small bowl. Cover and refrigerate.
Caprese Salad: Combine 2 tablespoons Walnut Pesto, olive oil and vinegar in small bowl. Slice tomatoes and cheese into 1/4-inch thick slices. Layer tomatoes and cheese on serving plate. Drizzle pesto vinaigrette. Sprinkle with salt and pepper.