Mary Ann visits the magical world of David Connor, AKA "Mister Tomato" who grows the most fantastic mushrooms you've ever seen in a energy-efficient greenhouse. He gives her a basket full to take nella cucina to create a hearty Pasta with Mushroom Sauce, a wintertime treat of White Polenta with Mushrooms and Peppers, and finishes it off with a Baked Mushroom Frittata. How about them tomatoes?