Combine meat, egg, crumbs, onion, 1/2 tomato sauce & the seasonings.
Shape into 10 x 12 rectangle by rolling on wax paper
Spread evenly with the mozzarella cheese. Roll up like a jelly roll & press ends of roll together.
Place in roasting pan....bake 350 degree for 1 hour
Drain excess fat & pour remaining sauce over & bake 15 minutes more