Spaghetti Casserole

Directions

1. 1
   Cook and drain spaghetti.
2. 2
   Add milk and egg to spaghetti and place in greased 9 x 13 pan.
3. 3
   Brown and drain hamburger.
4. 4
   Add garlic salt.
5. 5
   Pour over spaghetti mixture.
6. 6
   Spread chopped onion over hamburger, then mushrooms over onions. Spread spaghetti sauce over all and sprinkle with cheese.
7. 7
   Cover with foil and refrigerate overnight.
8. 8
   The next morning or when ready to serve bake at 350 degrees for 1 hour and 15 minutes.
9. 9
   Uncover and bake another 15 minutes.