If using deli meat, make sure you use it by the sell by date on the package. If you are not going to use it by that date, you can freeze it for up to four months. One tip for easy lunches is to separate the meat into individual servings, top with a slice of cheese and freeze so you can just grab it and some bread to take to work. This also works great for college students because the meat will be thawed by lunchtime and you don't have to worry about refrigerating it.
French Dip Sandwiches
In a saucepan or skillet, cook 1 large onion either sliced or cut into segments in 1 tbsp butter (or olive oil.)