Cook Italian sausage in a medium skillet until browned

Drain on paper towels and crumble into small pieces

Heat oven to 450 degrees

Place parchment paper on a baking pan and lightly flour

Roll dough out to form a large rectangle

Brush a thin layer of pizza sauce on dough

Layer on crumbled sausage then mozzarella cheese

Place pepperoni slices on top of cheese then sprinkle with 3/4 cup Parmesan cheese

Gently roll in short sides of dough to form a seal around filling

Starting on long side of dough, carefully roll into one third of Stromboli

Using parchment, roll dough again until reaching opposite end

Pinch together and place seam side down

Mix egg with 1 tablespoon of water

Brush egg mixture over Stromboli and sprinkle with remaining 1/4 Parmesan cheese

Place in oven and IMMEDIATELY TURN OVEN DOWN to 350 degrees

Bake for approximately 18 minutes

Remove from oven and let rest for 10 minutes

Test center of turnover

If dough is not completely cooked, slice Stromboli in half and bake for additional 5-8 minutes

Serve with warm pizza sauce