Some of our family favourites/regulars:
Chilli and rice - either made with a variety of beans, or mushrooms and beans, or sunflower mince
Mushroom stroganoff
Fajitas - either with mushrooms as the main ingredient, or a pack of frozen chargrilled veg, or a tin of ratatouille
Jamie Oliver brand spinach gnocchi
Richmond meat free sausages with mash and onion gravy
Richmond meat free sausage casserole
Mushroom risotto
Tofu katsu curry (you can even buy kits with the breadcrumbs included if you like)
Vegan burgers and homemade wedges (we like Morrisons The Best - Ultimate Meat Free, Beyond Burger, or Coop's own Gro burger with some salad/avocado etc toppings)
Clive's nut roast or pies (love the creamy mushroom one)
Chicago Town sticky bbq jackfruit stuffed crust pizza
Noodles with tofu (fried until crispy - I recommend the Tofoo company stuff) and black bean sauce/chow mein sauce, etc
Naked Without the Splash fish(less) goujons to replace a fish and chip night (or to have alongside chippy chips)
Easy lentil dhal (Deliciously Ella recipe)
Linda McCartney hoisin "duck" meal kit - add cucumber
Just Rol pastry to make homemade vegetable tart type things - everyone picks their own toppings
Lasagne - LovingItVegan have a good recipe, and this Tesco one is good realfood.tesco.com/recipes/vegan-aubergine-and-red-pepper-lasagne.html
Shepherd's pie made with green or puy lentils
Loads of roasted veg - sweet potato, cauliflower, etc can make a great one tray meal (add hummus or another dressing)
Also second the recommendation for the Green Roasting Tin for inspiration like that