Once your onions are translucent, add all of your sliced brussel sprouts to the pan as well as juice of one or two of your lemons and mix well continuing to stir while your brussel sprouts cook
Saute for about 5-10 minutes depending on how you like your texture in your sprouts, I like eating mine raw so I keep them a little on the under cooked side.
Once they are too your liking, stir in your thyme and salt and pepper and mix well
Remove from the pan and plate, sprinkle with your lemon zest and enjoy
I have also made this recipe with bacon, apples, and rosemary so feel free to experiment, they are all delicious