I guess you already know how to make a tofu scramble which is one of my favorite Sunday morning breakfasts.
but there are a number of vegan omelet recipes. None of which I have tried.
but the Minimalist Baker is one of my favorite chefs and here is her recipe.
and then this one doesn't need tofu but uses chick peas
I also have a few favorite chefs on YouTube.
here are a couple of their vegan omelette recipes
The cheap lazy vegan uses an egg sub.