Using a tablespoon, clean out the gills of portobello mushrooms, leaving only the caps. Chop up the stems and place aside to be later added to the stuffing.
Heat a medium saucepan, when hot add saffron, and toast quickly for only a few seconds. Immediately add the wine, and stir gently with a wooden spoon. Let wine and saffron mixture cook for about 2 to 5 minutes or until it begins to steam.
Add lobster meat and let simmer about 5 minutes; the meat will acquire an orange tint from the saffron. Stir in bread crumbs, mushroom stems, Parmesan and pecorino Romano, until thick. Add heavy cream and mix well. Spoon stuffing into the mushroom caps and cover with a slice of mozzarella.
Place on a baking sheet lined with aluminum foil and sprayed with non-stick spray. Bake for 10 to 15 minutes or until lightly browned.
A viewer or guest of the show, who may not be a professional cook, provided this recipe. It has not been tested for home use.