Mix together ground chuck and turkey, set aside. Mix remaining ingredients; then add ground meats. Form ingredients into 1–1 1/2-inch balls and bake at 350 degrees for 15 to 20 minutes or until firm. These may be frozen at this point when cooled.
For the sauce, simmer in crockpot until flavors are blended. Add meat balls and let sauce be absorbed by the meat balls before serving.