To a food processor, add both Doritos flavors, black pepper, paprika, and garlic powder, and pulse until it resembles coarse breadcrumbs. Transfer to a shallow bowl.
In a separate, shallow bowl, beat eggs until whites and yolks are well combined. In a third shallow bowl, add flour. Set up a coating station: Set up cheese triangles to the farthest left-hand side, followed by flour bowl, followed by egg wash, followed by Doritos. Finally, line a cookie sheet with parchment paper, and set on the farthest right-hand side.