Four chefs take on the challenge to create meat-free plates that could win over the palates of even the most die-hard carnivores. Dough and mayo must make it into the chefs' first set of veggie-licious dishes, and the competitors create mushroom entrées with tons of flavor in order to meet the meat-free-but-amazing criteria. Then, a boxed brownie mix seems like a gift in the dessert round, but the 30-minute time limit complicates things.