Baked Vegan Macaroni & Cheese is creamy, and the key ingredient is nutritional yeast. Nutritional yeast is a common ingredient in vegan dishes because it has a natural cheesy flavour. It’s also a great source of protein, vitamins (including vitamin B12, which is hard to find in plant-based foods), and minerals, so it gives your recipes a nutritional boost, too! This species of yeast grows on molasses, but it’s inactive, so you can’t use it to make bread or beer.