Combine first 4 ingredients in a large bowl. Divide mixture into 16 portions, using about 1/3 cup in each portion. Pat each portion into a 4-inch diameter cake; place on wax paper.
Heat a large nonstick skillet over medium-high heat. Coat both sides of each cake with cooking spray; place in batches in pan. Reduce heat to medium; cook 1 to 2 minutes on each side or until browned. Remove from pan, and place on wax paper. Cool completely.