Start by filling a large pot with water and adding a generous amount of salt. Bring it to a rolling boil. The salt enhances the flavor of the pasta.
Once boiling, add the pasta and cook according to the package instructions until al dente. This usually takes about eight to ten minutes. Stir occasionally to prevent sticking.
After cooking, drain the pasta in a colander and rinse under cold water to stop the cooking process. This helps keep it from becoming mushy.
While the pasta cools, prepare your vegetables. Chop the red bell pepper, cilantro, and red onion into bite-sized pieces. Halve the cherry tomatoes and dice the jalapeño if you’re using it.
In a large salad bowl, combine the cooled pasta, black beans, tomatoes, corn, bell pepper, onion, cilantro, and olives.
In a separate bowl, whisk together the ranch dressing, lime juice, chili powder, and cumin. Taste the dressing and season with salt and pepper as needed.
Pour the dressing over the salad ingredients in the large bowl. Use a spatula to gently mix everything together until all ingredients are well coated with the dressing.
Once everything is well mixed, cover the bowl with plastic wrap or a lid. Refrigerate for at least one hour before serving. This allows the flavors to meld beautifully together.
When ready to serve, give the salad a good stir and taste again. Adjust seasonings if necessary with more salt or pepper. Enjoy your refreshing Southwest Pasta Salad!