Place a large pot of salted water over high heat. Cook the pasta according to the package instructions, then drain and set aside to cool.
Meanwhile chop all necessary ingredients.
Set out a large salad bowl. Add in the cooked pasta, black beans, tomatoes, corn, chopped bell pepper, onion, cilantro, olives, and jalapeno.
In a separate bowl (or measuring pitcher) combine the ranch dressing, lime juice, chili powder, and cumin. Mix well. Then taste, and salt and pepper to taste.
Mix the dressing into the pasta salad and gently stir until well coated.
Cover and chill for at least 1 hour. (Allowing the pasta salad ingredients to rest with the dressing longer creates a better overall flavor.)
It’s ok the make the dressing a little extra salty so it seasons all the ingredients in the past salad well. If you are worried about over-salting, you can add just a little, and add more later.This recipe is excellent to make ahead! Homemade Southwest Pasta Salad with ranch dressing will keep well for up to 4-5 days in the fridge.