Ok this is difficult for me to admit, very difficult indeed. You see as a former veggie I have generally found vegetarian alternatives to food well...shit. Sorry I can't help it, now I'm on the carnivore band wagon I'm all meat please. On the bone? Even better #norudejokesplease.
However my butternut squash and spinach lasagne is better than the beef variety. Basically make a normal lasagne but fill it with butternut squash and spinach instead. Make sure you roast the butternut first, steam and dry the spinach and that's about it. BBC good food website has the original recipe. I think it's worth the effort for a veggie dish and that's saying something.