Put a skillet on at medium high and add a couple of tablespoons of good extra virgin olive oil. If your string beans are the bulk kind rinse them off and cut off the fuzzy end. If you want them to be more like bite size cut them into the size that you want. Slice or chop the garlic and the onion.

Put all of the ingredients except the lemon in the skillet. Squeeze the lemon juice on it all and put the lemon rind in the mix. Salt and pepper to suit you and your gang. Toss often as it cooks and when the beans are as snappy or as mushy as YOU want them to be (5-10 minutes) serve them up. They go great with anything. You might want to, purposely, make more than you need so you can have them as a nuke it no brainer for work or another busy weeknight.