Beef Tortellini Soup

Ingredients

• 1 pound ground beef
• 7 cups beef broth
• 2 cans (14-1/2 ounces each) stewed tomatoes
• 3/4 cup ketchup
• 3/4 cup thinly sliced carrots
• 3/4 cup thinly sliced celery
• 3/4 cup finely chopped onion
• 1 tablespoon dried basil
• 1-1/2 teaspoons seasoned salt
• 1 teaspoon sugar
• 1/4 teaspoon pepper
• 4 bay leaves
• 1-1/2 cups frozen cheese tortellini
• Grated Parmesan cheese, optional