- Place the potatoes in a pot and cover with cold water. Season with salt. Bring to a boil and simmer for 25 minutes or until the potatoes are tender. Drain and return to the pot. With a masher, mash the potatoes until smooth.
- Meanwhile, in a non-stick skillet over medium heat, soften the Brussels sprouts and the green onions in the butter. Season with salt and pepper.
- Stir the Brussels sprouts mixture into the mashed potatoes. Adjust the seasoning.