To make these quinoa bites vegan, you need to eliminate the egg and the cheese. Here's the substitutions I'd recommend: Parmesan cheese: replace with 1/4 cup nutritional yeast. Sharp cheese: replace with suitable vegan cheese that will melt or simply eliminate it and add some additional garlic powder. Egg: Use 1/2 cup silken tofu total in place of the egg and egg whites. Note: If they seem crumbly and won't roll, then I'd recommend measuring them out by the tablespoon and cooking them in a mini muffin tin.