You could go Indian as well - rice and curry and tomatoes, maybe even some coconut. And of course a tofu crumble is always good - saute it with onion and garlic, some brewer's yeast, you could add some peas and dices carrot, and then of course cheese makes everything better!

Rice and beans, too.

Sky is really the limit when it comes to stuffing a poblano. How about onion, garlic, tomato, quinoa, cheese (cotija, monterey jack), corn and squash. Then dredge & fry as usual.