• Preheat the grill.
• In a small bowl mix together the garlic powder, onion powder, parsley, salt, and pepper.
• Use aluminum foil pieces large enough to comfortably wrap the potatoes. Spray the aluminum foil with olive oil spray so the potatoes don't stick.
• Add the potatoes and onion to the aluminum foil, then sprinkle on the seasoning mixture.
• Bring the edges of the foil together and fold over. Once sealed you can add the potatoes to your preheated grill. Cook 20-30 minutes or until the potatoes are fork-tender.

To bake in the oven:

• Preheat the oven to 350 degrees F.
• Prepare the potatoes the same way. Add the foil packets to a baking sheet then put in the oven for 30 minutes or until the potatoes are fork-tender.