Mix in baking powder, baking soda, and salt thoroughly, but briefly, using blender and/or rubber spatula as needed. Mix in thawed frozen corn. Divide batter in half. Pour half of cornbread mixture in bottom of oiled 9x13 pan. On top of cornbread carefully add meat mixture; on top of meat sprinkle pepper mix; top with remaining cornbread mixture. Cover and freeze.
To serve: Thaw. Uncover and bake at 350 degrees for 40-45 min until cornbread is baked through. Let set 5 min or so and cut into squares. (Double bake time if frozen).