I’m not vegan but used to cook for one while she was dealing with some health and mobility issues. The meals she requested over and over were:
Red lentil soup with brown rice
https://ohsheglows.com/glowing-spiced-lentil-soup/
Lasagna
https://minimalistbaker.com/butternut-squash-lasagna-vegan-gf-optional/
Shepherds Pie
https://tasty.co/recipe/vegan-shepherd-s-pie
Blackbean burgers (use mashed sweet potato as a bunder and omit cheese)
https://sallysbakingaddiction.com/best-black-bean-burgers/