You can't beat hash - plus it's a great way to use up roast beef or cold potatoes, and easily made by an ordinary cook.
Bread pudding is a practical way to make use of older bread.
There are frozen turkey breasts.
Omelets are appetizing.
A light, summery dessert is always within reach if you keep a box or two of jello in your cupboards. It's expiration date is usually really good.