Cut potatoes in half, lengthwise. Scoop the insides of each potato into a large mixing bowl and set the hollowed-out skins onto a cookie sheet
Mash potato insides with the onion, butter, milk, garlic powder, salt and 1/2 cup cheese.
Spoon mashed potato mixture into potato skins and top with 1/4 cup cheese and bacon bits.
Bake at 350 degrees for 15-20 minutes. Enjoy!