Created by lazyme on February 24, 2015
Step 1: Toss sirloin, and 2 tablespoons flour in bowl.
Step 2: Melt 2 tablespoons butter in large Dutch oven over medium-high heat.
Step 3: Cook until beef is browned; transfer with slotted spoon to bowl.
Step 4: Add celery, carrot, onion, garlic, thyme and white pepper to Dutch oven.
Step 5: Cook, stirring, 3 minutes, until vegetables are lightly browned.
Step 6: Add broth, tomatoes, 1 cup water, reserved beef, and 1/2 teaspoon salt.
Step 7: Bring to boil; reduce heat to medium and cook 20 minutes, until vegetables are tender.
Step 8: Add beef ravioli; cook 10 minutes, stirring occasionally.
Step 9: Meanwhile, combine 2 tablespoons flour and 1 tablespoon cornstarch with 2 tablespoons water in cup until smooth.
Step 10: Stir into soup; bring to boil and boil 1 minute.