Preheat oven to 350°F. In a medium bowl, mix potatoes, cheese and the onions. Salt and pepper to taste. Pour into a 9x13 greased casserole dish and press all along the bottom and sides of dish. Bake for 15-20 minutes until light brown.
Meanwhile, in a 12 inch skillet, brown ground beef, (do not drain). Add the next 9 ingredients and mix well. Cover and simmer until most of the broth is gone but not dry, about 5 to 7 minutes.
Pour into the baked potato crust, sprinkle with cheese and bake for an additional 20 minutes. Serve with your favorite salsa, a salad and crusty bread.