Mix onion, celery, garlic and broth in a 5 1/2 quart or larger crockpot.
Rub drumsticks with paprika, salt and pepper. Add to crockpot along with the sausage.
Cover and cook on LOW 4 to 5 hours, or until chicken is tender. Remove drumsticks to a large plate and cover to keep warm.
Add rice and pepper strips to crockpot. Cover and cook 15 minutes, or until rice and pepper are tender. Sprinkle servings with scallions.