1 lb. boneless beef round steak, cut into 1/2-inch cubes
1 jar (26 to 28 oz.) marinara sauce
2.5 cups water
1 package (9 oz.) refrigerated cheese-filled ravioli
1/2 cup grated Parmesan cheese
1. In 3.5 - to 4-quart slow cooker, mix beef, marinara sauce and water.
2. Cover; cook on Low heat setting 8 to 10 hours.
3. Stir in ravioli. Increase heat setting to High Cover; cook 20 to 30 minutes until ravioli are tender. Sprinkle individual servings with cheese.