In the morning, place carrots, potatoes and onion in slow-cooker.
Rinse beef and place over veggies.
Cover (or almost cover) with water.
Sprinkle pepper over top.
Cover and turn on high.
Continue getting ready for work.
When leaving for work, turn cooker to low.
Cook approximately 6 to 8 more hours.
2 hours before done (about 3 PM for me), have family member add the brussels sprouts.
(If this doesn't work for you, you can microwave steam the brussels sprouts and add them at the very end, allowing the mixture to heat for about 20-30 minutes more.)
Sit down to nicely done family meal. Congratulations, you're a true "Gourmet Goof-off!"