Melt 1/4 cup butter in saucepan and add steak and onions. Cook until onions are clear. Add paprika and tomatoes. Add beef stock, garlic, lemon and caraway seed. Simmer 45 minutes to 1 hour. Thicken with 2 T butter and flour. Cook noodles according to package. Drain. Serve goulash over noodles. Makes 4 - 6 servings