What sounds better on a cold winter night than a zesty, ooey-gooey lasagna dinner with all the fixings? Trouble is, traditional lasagna recipes call for lots of cheese. But with a few clever substitutions, you can get all the satisfaction of dairy-laden dishes and still keep your meal vegan. Tofu and vegan cream cheese provide a velvety replacement for ricotta. Nutritional yeast lends a flavor that's a lot like Parmesan. And a sprinkling of nondairy mozzarella on top gives you the ooey-gooey factor for totally satisfying warm-you-up fare.