Preheat the oven to 400°F.
Cook the beef in a large skillet for 8 to 10 minutes or until completely browned.
Drain off the excess grease and the stir in the taco seasonings, tomatoes, water, green chilies, and rice.
Follow the instructions on the package to make the cornbread and stir in the corn.
Pour half of the cornbread batter into a greased 9 x 13-inch baking dish.
Add half the meat mixture, all the sour cream, half the chips, and a cup of cheese.
Top with the rest of the cornbread batter and then the meat and the olives.
Bake uncovered for 55 minutes or until the cornbread is cooked.
Sprinkle the rest of the corn chips on top and then the rest of the cheese.
Bake for another few minutes until the cheese has melted.
Serve hot, adding lettuce, red onion and tomatoes, if liked.
Enjoy!