Set a baking rack on top of a foil-lined baking sheet and spray it with cooking spray. Cut excess skin off drumsticks.
Melt the butter in a shallow bowl, then stir in the minced garlic, garlic powder, and seasoned salt.
In a separate shallow bowl, combine the panko, cheddar, Parmesan, smoked paprika, garlic powder, Italian seasoning, chili powder and black pepper.
Dredge each drumstick in the butter mixture, then roll them in the cheesy panko mixture.
Arrange the breaded drumsticks in a single layer on the baking rack, then bake at 400 degrees for 35 minutes or until drumsticks reach an internal temperature of at least 165 degrees, using tongs to flip them over halfway through.
Notes
I had pretty small drumsticks here; if yours are larger you may need to adjust the cooking time upward to compensate.