Cheddar-Pasta Toss
["1 1/2 c. uncooked tri-colored rotini", "1/2 (10 oz.) pkg. frozen English peas", "1 c. julienne strips cooked ham", "1 (8 oz.) pkg. Cheddar cheese, cut into 3/4-inch cubes", "1/2 c. chopped celery", "1/2 c. sliced ripe olives", "3 green onions, chopped", "1/4 c. plus 2 Tbsp. mayonnaise", "2 Tbsp. red wine vinegar", "1 Tbsp. olive oil", "1/4 tsp. garlic powder", "1/4 tsp. pepper", "1/8 tsp. dried whole oregano", "1 (4 oz.) jar sliced pimiento, drained", "lettuce leaves"]
["Cook rotini according to package directions; drain.", "Rinse with cold water; drain again.", "Cook peas according to package directions; drain well.", "Combine pasta, peas and next 5 ingredients in a large bowl; toss gently."]
["rotini", "peas", "julienne strips cooked ham", "Cheddar cheese", "celery", "olives", "green onions", "mayonnaise", "red wine vinegar", "olive oil", "garlic powder", "pepper", "oregano", "pimiento", "lettuce leaves"]