Bring a large pot of salted water to a boil and cook the rotini pasta according to package directions until al dente. Drain the pasta in a colander and rinse it under cold water until completely cooled—this stops the cooking process and prevents the pasta from becoming mushy in the salad. Set aside to drain thoroughly so excess water doesn't dilute the dressing later.

While the pasta cooks, prepare your mise en place: rinse and drain the black beans and corn, then chop the bell pepper, dice the red onion finely, halve the cherry tomatoes lengthwise, chop the fresh cilantro, and shred the cooked chicken. I find that having everything prepped and ready before assembling makes the final assembly quick and ensures even distribution of ingredients throughout the salad.

In a large mixing bowl, combine the cooled cooked pasta from Step 1 with the black beans, corn, bell pepper, red onion, cherry tomatoes, and shredded chicken from Step 2. Pour in the chipotle ranch dressing and sprinkle the ground cumin and fresh lime juice over the top. Toss everything together gently but thoroughly until all ingredients are evenly coated with dressing and the cumin is distributed throughout. I like to add the lime juice directly to the bowl rather than mixing it into the dressing separately—it gives brighter pops of citrus flavor throughout the salad.

Cover the bowl and refrigerate the pasta salad for at least 1 hour before serving. This allows the flavors to meld together and the pasta to fully absorb the dressing. The salad tastes even better after a few hours, and it holds well for up to 2 days in the refrigerator, making it perfect for meal prep or picnics.