Initiate by preparing the dressing. In a medium-sized bowl, combine the mayonnaise, sour cream, freshly squeezed lime juice, and taco seasoning. Utilizing a whisk, blend the ingredients until they achieve a harmonious consistency. Refrigerate the resultant mixture until it is required for subsequent steps.

In a separate, larger bowl, amalgamate the coleslaw mix, diced red and orange bell peppers, drained black beans, drained corn, minced cilantro, and minced jalapeño. It is imperative to ensure that the beans and corn are devoid of excess liquid to maintain the desired consistency of the coleslaw.

Extract the previously prepared dressing from the refrigerator. Incorporate it into the vegetable mixture, ensuring that the components are uniformly coated with the dressing. Should one prefer, additional cilantro may be garnished atop the coleslaw prior to serving. The dish is now ready for consumption.