Preheat oven to 400 F. In a shallow dish, whisk together milk, and egg. In another shallow dish, whisk together flour, salt, pepper, paprika, garlic powder, and onion powder.
Dip each chicken into the egg mixture first, then fully coat each into the flour mixture. Set onto a large greased baking sheet and bake for 30-35 minutes. Flipping halfway through. Serve on hamburger buns.