Pesto-Macaroni Salad
["3 c. uncooked medium shell macaroni", "1 Tbsp. olive or vegetable oil", "1 c. pasta", "1/2 c. small pitted ripe olives", "1/4 c. white wine vinegar", "4 Italian plum tomatoes, each cut into 4 wedges", "4 c. coarsely shredded spinach", "grated Parmesan cheese (if desired)"]
["Cook macaroni as directed on package.", "Rinse in cold water and drain; toss with oil.", "Mix pesto, olives, vinegar and tomatoes in large bowl.", "Arrange 2 cups macaroni and 2 cups spinach on olive mixture; repeat.", "Cover and refrigerate at least 2 hours.", "Toss and sprinkle with cheese.", "Makes 6 servings (about 1/4 cup each), 500 calories per serving."]
["shell macaroni", "olive", "pasta", "olives", "white wine vinegar", "Italian plum tomatoes", "spinach", "Parmesan cheese"]