1Combine the mayonnaise with the sour cream,diced scallions(reserve some for garnish)set to the side. Combine the diced peppers,plum tomatoes,cilantro,lime juice,lime zest,chili powder,salt and cumin,set to the side.
Open and rinse the beans of your choice,drain well,set to the side.
2Using a clear bowl or trifle dish begin layering the salad beginning with half of the cubed corn bread,one can of the beans,half of the tomato mixture,shredded cheese and then the sour cream,repeat. Garnish with scallions and shredded cheese and refrigerate until chilled and set.