CUT 3 slices from cheese. Use small star-shaped canape or cookie cutter to cut 1 star from each cheese slice. Shred cheese trimmings and remaining cheese; reserve for later use.
COMBINE sour cream, taco seasoning mix, cilantro and peppers; spread onto bottom of 2-qt. rectangular baking dish.
SPOON beans into square shape on upper left hand corner of dip; top with cheese stars. Top remaining dip with rows of tomatoes and shredded cheese to resemble flag as shown in photo.