Preheat the oven to 400°F. Line a baking sheet with parchment and coat lightly with cooking spray.
Put flour in one shallow bowl, beaten eggs in a second, and breadcrumbs mixed with garlic powder, paprika, salt, and pepper in a third.
Coat each chicken piece in flour, egg, then breadcrumbs and place on the prepared sheet. Spray the tops lightly.
Bake for 15 to 20 minutes, flipping halfway, until golden and the chicken reaches 165°F.
Cool briefly before serving. To freeze the raw breaded nuggets, freeze them first on a tray; bake from frozen until their centers reach 165°F.