Step 1: In 10-inch skillet, mix beef, taco seasoning mix and corn. Heat to boiling over medium-high heat, stirring occasionally. Spoon into ungreased 12x8-inch (2-quart) glass baking dish; sprinkle with 1 cup of the cheese.
Step 2: Separate or cut dough into 2 long rectangles (if using crescent rolls, press perforations to seal). Place on top of meat mixture. Sprinkle with remaining 1/2 cup cheese.