Beef Stroganoff with flour

4 cups beef stock 1 cup crushed tomatoes 2 tablespoons flour 1 cup dry red wine 3 sprigs fresh thyme 12 ounces beef tenderloin , sliced 1/4-inch thick coarse[...]

1 cup butter 1 1/2 cups onions , chopped fine 1 1/2 cups fresh mushrooms , sliced 3 1/2 lbs beef top round steak , cut into 2 inch strips (1/4" x 1/4") 6[...]