Green Brussel Sprouts are terrific fried in a pan
When storing Brussels sprouts whole, place them loose in a bowl and cover with a food-safe plastic wrap, like Glad® Press'n Seal® or Glad® ClingWrap. Poke a few holes in the wrap and place your bowl in the fridge. Doing this should mean your Brussels sprouts will last in the fridge for about five days.
The simplest way is to Heat the oil in a large, heavy bottom skillet (a cast iron pan is a good choice), then add your Brussels sprouts. Cook undisturbed until caramelized and season to taste.