This popular dish is a delicious way to use leftover beef. The creamy mushroom sauce clings to the noodles thanks to a bit of sour cream and flour used as thickeners.

Roast Beef a La Stroganoff

1/4 cup butter
1/2 cup chopped celery
1 onion, chopped
1/4 pound mushrooms, sliced
1/2 cup all-purpose flour
1 teaspoon soy sauce
1 1/2 cups beef broth
1 cup sour cream
3/4 pound cooked roast beef, cut into strips

Cooked wide noodles for accompaniment

1. In a large, heavy skillet, melt butter over medium-high heat. Add celery, onion and mushrooms and sauté until tender.
2. Stir in flour and soy sauce. Add beef broth and cook, stirring, until thickened. Stir in sour cream. Add roast beef and heat thoroughly. Serve over warm noodles.

Makes 6 servings.