In a large skillet brown the sausage and ground meat until fully cooked. Remove meat with a slotted spoon and set aside. In the drippings (you may have to add some oil) cook the potatoes and the onion until potatoes are browned. In a bowl, beat the eggs, milk and seasonings; pour over the potato mixture. Add the meat mixture, cook and stir over medium heat until the eggs are set. Sprinkle with the cheese. Cover for 1-2 minutes to melt the cheese.