Gluten-free nut roast

[Aparecium]

I’m doing lamb with chestnut stuffing for Christmas dinner, and need a small vegetarian alternative as well. It is for someone who dislikes meat, rather than a committed vegetarian, so I don’t need to worry about gravy etc.

I doubt I’ll have the time to make one from scratch. Can anybody recommend one I can buy? Or an alternative that is also protein-rich, yet not made of fake meat?

Aldi freezer isle has nut roast mains in 2 different flavours. They are boxes with 2 portions in each. I can’t fully recall the flavours, but one is either with butternut squash or sweet potato (it was too sweet for me) and the other one I believe was with cranberry - much nicer.
They say gluten free on the box.