This shrimp and pasta salad is the perfect main dish salad for a hot summer lunch or dinner. The dressing is a lightly seasoned mayonnaise mixture with some spicy brown mustard to give it tanginess. Use a reduced-fat mayonnaise in this salad. Use rotini, wheels, shells, or elbows in this tasty shrimp salad. The salad should be refrigerated for a few hours before serving, so plan to prepare it earlier in the day. Our shrimp and rice salad is another tasty option.