Americana Casserole

Directions

1. 1
   Melt 2 tablespoons butter.
2. 2
   Add onion and ground beef; saute until beef is thoroughly browned.
3. 3
   Drain off drippings.
4. 4
   Reserve meat mixture; set aside.
5. 5
   Melt remaining 1/4 cup butter over low heat.
6. 6
   Stir in flour, salt and pepper.
7. 7
   Cook until smooth, stirring constantly.
8. 8
   Remove from heat.
9. 9
   Gradually stir in milk. Bring to a boil over medium heat, stirring constantly.
10. 10
    Boil and stir 1 minute.
11. 11
    Add 1 cup cheese and Worcestershire sauce.
12. 12
    Add frozen vegetables and reserved meat mixture.
13. 13
    Turn into a 1 1/2-quart casserole; bake at 375° for 25 minutes.