Coarsely mash beans with a fork. Combine beans and next 6 ingredients; shape into 8 patties. Stir together flour and cornmeal and dredge patties in mixture.
Cook patties in hot oil in a large non-stick skillet over medium-high heat for 5 minutes on each side or until lightly browned.
Drain on paper towels. Serve on buns with condiments of choice (lettuce, tomato, onion, mayo, ketchup, mustard, salsa, etc.).