Just get a pizza dough (this one's from Pillsbury, found near the crescent roll section), some Italian sausage, cheese and any other pizza topping that floats your gondola.
Saute your sausage mixture first, let it cool while you roll out your dough/crust. Brush the flattened dough with egg, dress the dough as pictured here, roll it up, coat the outside too, and bake until golden brown. Be sure to let it sit for at least 10 minutes before you cut into it, and serve.
It may be a little far from "gourmet", but who doesn't like Pizza?