Cauliflower cheese/macaroni cheese? Leek pie ( leeks, mushrooms in cheese sauce with sliced potoaotes on top topped with tomatoes and cheese/breadcrumbs/herbs baked in the oven (topping also for cauli cheese).
Yes to Quorn products as meat substitute if you're wanting to cook the same food you usually do and if she's happy about meat texture. I realise this is highly processed (mycoprotein) but has high nutritional value. I sometimes use it in spag bol, chili con carne ( no carne or reduced carne!), lasagne etc - it's very tasty if you put loads of tom sauce, herbs, soy sauce and veg in these dishes and the veg is more disguised. Maybe Enchildadas with Quorn instead of chicken?
Any amount of beans and pulses - Asian recipes - not meat substitues but a whole world of yummy dishes waiting to be discovered along with the various spcies and sauces that help make them tasty. Egg curry, spinach dhal, chapattis, cucumber raita, Chinese and Thai beany dishes etc etc
Yes to savoury pancakes - never had Quorn "chicken" but savoury pancakes filled with "chicken" and mushroom sauce - not tried this though....only with actual chicken.
Quiches, cheese souffles etc....
Many reasons to go veggie - not liking meat, not agreeing with animals being kept for slaughter, health reasons (reducing fat intake) and environmental reasons (meat is more energy intensive and less good for our planet at the rate and quantity we consume so eating less of it will help the planet). What your reasons are will determine what you choose to eat instead!
Each to their own - as long as it's balanced, nutrituous and tasty and ideally not highly processed - so Quorn etc in moderation (would be boring to have it all the time anyway!).
Hurdity x