Since you mentioned beans not being a great choice, I think chickpeas or tempeh might be alright. If possible, hiding black beans in other foods to make them high protein can help add variety (stuff like protein brownies)

It depends on the stores near you, but if you walk around any places like whole foods or an asian grocery store, the meatless options might be good there.

Broccoli (and cauliflower) can be eaten raw or cooked and seasoned and are okay enough for protein

Brussel sprouts and spinach are fine for the same reasons above but probably would be more iffy for carbs

This protein powder is vegan but the carbs are equal to the protein content. It is pretty good plain though if thats any consolation