This is one my favorite ways to fix green beans. Whether they are fresh or canned, this works for both. But the fresh are SO much better!
In a large skiller over med heat, add 1 Tblsp olive oil and 1 Tbsp butter. When the butter has melted, add 1/2 chopped onion, a couple good handfuls of fresh green beans (ends snipped) a good sprinkling of salt and a few sprinkles of Mrs. Dash veggie seasoning. Let them cook down for about 10 minutes, until they start to turn slightly brown here and there. Remove from the heat, throw a lid on them or a piece of foil and keep warm until ready to serve. They will finish cooking with the steam created by the lid.