1Heat oven to 450° F. Grease 9x13-inch pan. In medium bowl, mix Bisquick mix, water and cilantro until soft dough forms. Spread in bottom of pan.
2In large bowl, mix beef, salsa and corn. Spoon beef mixture over dough.
3Bake uncovered, 22 to 28 minutes or until edges are golden brown and toothpick inserted in center comes out clean. Immediately sprinkle with cheese. Let stand 1 to 2 minutes or until cheese is melted. Serve with sour cream.