Combine flour, salt, and pepper in brown paper bag.
Add chicken a few pieces at a time; shake until coated with flour mixture.
Place chicken in single layer in shallow baking dish.
Dot with butter.
Bake at 450°F 25 minutes.
Remove from oven; pour sauce over chicken.
Sprinkle with dillweed and cheese.
Reduce heat to 350 °F; bake 25 minutes.