Preheat oven to 425 degrees F.
In a large bowl toss together the potatoes, garlic, onion, green bell pepper, red bell pepper, olive oil, butter, seasoned salt, cayenne pepper and salt and pepper.
Bake: Pour potatoes onto a rimmed baking sheet. Bake for 15-20 minutes, tossing twice during baking.
Increase oven temp to 500 degrees (or broil) until crispy, about 10-15 more minutes, tossing twice.
