Macaroni salad is a ubiquitous cookout side dish, but it can become a bit boring as the summer goes on. So next time, surprise your friends with this tex-mex style macaroni salad. Cilantro, corn, black beans, diced fresh tomatoes, and the flavorful dressing make this pasta salad unique. The dressing, a kicked-up chili-seasoned mayonnaise with lime juice, gives it a distinctive southwestern flavor. This macaroni salad is great with burgers, grilled chicken, steaks, and chops.