Ground Beef and Onion Gratin Recipe

Directions:

1. Set oven to 350 degrees.
2. Grease a 2-quart baking dish.
3. Heat the oil in a skillet.
4. Brown beef with garlic; drain and mix in the 1/4 cup Parmesan cheese, set aside.
5. Simmer the onions in boiling water for 10 minutes; drain and reserve 1/2 cup of the onion water.
6. To the 1/2 cup onion water, add in the boiled onions, soup, dry mustard, salt, pepper cheddar cheese and green onions; mix well.
7. Pour the mixture into a prepared baking dish.
8. Bake for 25 minutes.
9. Combine the 1 cup Parmesan cheese, bread crumbs and butter; mix well.
10. Remove the dish from oven and set to broil.
11. Evenly sprinkle the crumb/cheese mixture on the casserole and broil for about 2 minutes.