If you’re feeling lazy, there are some good veggie frozen/convenience foods for quick family teas:
Quorn nuggets or birds eye vegetarian dippers (genuinely can’t tell they’re not chicken!)
Birds eye vegetarian ‘meat’ balls (cook separately in the oven, they go a bit soggy in a sauce)
Linda McCartney veggie quarter pounders - best ‘meaty’ veggie burgers I’ve had, don’t overlook so they stay juicy
Asda plant kievs (chilled) again, hard to tell they’re not chicken!
Cauliflower cheese burgers, most supermarkets do their own version
I also second using lentils in place of mince, and lots of spicy stews/curries with chick peas and lentils etc. Sweet potato and coconut cream are good in curries to make it taste rich/substantial.
We went low meat/dairy a few years ago for eco reasons and I’m so glad we did. It’s really fun finding out swaps and trying new things. Like PPs above, the idea of big lumps of meat every day feels a bit much now.