This isn't something I've tried yet, but I don't see why not if using the right cheese when I think about it. I suggest using a creamy dairy-free milk like coconut milk, an egg replacer, and a melty vegan cheese like mozzarella or cheddar. However, most vegan versions I've seen have added potato for the extra lift, as the eggless version seems quite flat. I haven't tried either method (yet, at least). If someone tries this or has tried it, please let me know in the comments how it worked out for you.