In a large saucepan, brown ground beef and drain off any excess fat. Add taco seasoning and cook according to package directions, adding proper amount of water. Stir in the frozen corn.

Place crushed corn chips into the bottom of an 8x8" square or small rectangular casserole dish.

Cook refried beans on stove until hot. Add 1 cup cheese and 1 cup salsa. Stir until combined.

Spread beans over corn chips in dish.

Add beef and corn mixture to top of beans.

Sprinkle remaining cheese over top.

Sprinkle black olives and green onions over cheese.

Bake in a 375 degree oven until for 15 to 20 minutes, or the cheese is sufficiently melted.

Remove from oven and sprinkle chopped tomatoes on top. Allow to sit a couple of minutes, then serve.

I sometimes like to serve this casserole over a bed of shredded lettuce, and serve it with sour cream and guacamole on the side.