Not a vegan but just to say, I would continue with the pulses for protein but in as many inventive ways as you can.
Just for example:
Lentil lasagne with aubergine rather than pasta
Pulse (whichever you like) “shepherds pie” with cauli mash
Curries – did a fab green lentil and cauli daal myself yesterday. Loads of potential combos there
Chilli – lentils and red kidney beans
I also did a wonderful fried red snapper on a base of green lentils from a slightly modified James Martin recipe the other day (sadly no red wine to hand so the lentils were just cooked in stock, but nonetheless really really good)
So I would just look at all the possible recipes and think pulses. Not too many as they are very carby, but they are also very filling. The recipe above, for example, said 70g of dried lentils per person with the fish and I did 25g and all agreed that was the right balance.
Hope all that helps! 🙂