Cut steak into 4-6 pieces and pound each piece to flatten very thin. Place mozzarella and butter on each piece then sprinkle with Parmesan, garlic, salt and pepper. Roll each piece and tie securely with string.
Saute in olive oil with salt and pepper until steak rolls are browned on all sides. Drop into your favorite tomato sauce and simmer 1 1/2 hours or until fork tender. Remove from sauce, let cool slightly then carefully remove string and serve with your favorte pasta.