Mix the potatoes and oil in a bowl until evenly coated.
Sprinkle salt & pepper first, then mix.
Sprinkle the paprika & garlic salt next.
Add potatoes to a sprayed (or oiled) 13x9 pan.
Shake the pan to evenly spread out the potatoes.
Roast for 30 minutes, tossing the potatoes halfway through.
Notes
I honestly guestimate the amount of sprinkled spices going in (1 teaspoon is a guess, but I'm pretty sure I use more paprika than that since I'm a paprika freak). So feel free to add and coat to your liking.