Cottage Pie

Directions

1. 1
   Preheat oven to 350°.
2. 2
   Brown hamburger meat and drain off the fat.
3. 3
   Add chopped onion and simmer 2 to 3 minutes until opaque. Add soup, mushrooms, salt and pepper; mix well and put into a casserole dish.
4. 4
   Spread mashed potatoes over mixture.
5. 5
   Sprinkle with Parmesan cheese.
6. 6
   Bake at 350° until the cheese topping is light brown (and potatoes are heated through if cold mashed potatoes were used).
7. 7
   Serves 3 to 4.