Cut steak into 5 or 6 servings.
Coat with salt, oregano, and pepper.
In Crock Pot, pour spaghetti sauce over meat.
Cover and cook on low for 7-9 hours or until meat is tender.
Turn to high; add onions.
Cook on high for 10-15 minutes.
Serve with Italian green beans and toasted garlic cheese bread.
Makes 5-6 servings.