Hamburg Chowder

Ingredients

• 12 lb ground chuck
• 1 tablespoon vegetable oil
• 4 carrots, sliced
• 2 cups chopped celery
• 1 small cabbage, chopped
• 5 cups water
• 3 beef bouillon cubes
• 1 cup uncooked rice
• 1 bay leaf
• 2 (1 lb) cans tomatoes, broken up
• 2 tablespoons salt