Cook pasta according to directions on package.While pasta is cooking, mix together (in a VERY large bowl) the cooked chicken, bell peppers, tomatoes, olives, corn, onion, black beans, pinto beans, and taco seasoning.After pasta is finished cooking, mix it into the bowl with other ingredients (do not add cheese at this point because the hot pasta has a tendency to melt it, so wait to add the cheese until the pasta has completely cooled down).In a separate bowl, mix together dressing ingredients and fold into pasta/vegetable mixture. Stir until all ingredients are coated with dressing.Fold in cheese at this time and place in the fridge. I prefer to eat this after it has been in the fridge for at least 2-4 hours, but it tastes even better after staying in the fridge overnight.