Heat olive oil in a large stock pot
Saute onion until just starting to wilt
Add garlic and saute one more minute
Add celery and cabbage greens and saute two minutes
Add bell pepper and saute one minute
Add broth and water
Bring to just under boiling then reduce to a simmer
Gently spoon meatballs into soup
Cook 20 minutes or until meatballs are done
Add rice, salt and pepper and serve