Preheat oven to 400 degrees. Season both sides of the chicken breasts with paprika, garlic powder, onion powder, salt, black pepper then place them into a 7x11 casserole dish. Sprinkle dehydrated chopped onions on top.
Pour the BBQ sauce on top and spread evenly, making sure to spread some underneath the chicken as well. Place the butter on top of the chicken once BBQ sauce is spread out.
Bake uncovered at 400 degrees for 20-30 minutes or until internal temperature reaches165 degrees. Serve & enjoy!