I found this recipe on Allrecipes.com. Check out the great reviews here.
large russet potatoes - washed
1 Tbls. olive oil per potato
a pinch of seasoned salt & pepper per side of each potato
Poke potatoes with a fork.
Microwave on high for 5 minutes.
Slice potatoes in half the long way and microwave again for 2 minutes.
Preheat grill to medium heat.
Brush the potatoes all over with olive oil.
Sprinkle both sides of the potatoes with seasoned salt & pepper.
Grill for 7-10 minutes on each side.
Keep an eye on them so that they don't burn.
Recipe from Allrecipes.com