How can I cook all these stubbornly green pumpkins?

[Giggorata]

All my pumpkin vines have died off now, exposing about eight huge green monsters.
I took one away about a month ago, which has been basking in the sunlit window, assiduously turned every day… still green.

Has anyone any ideas/recipes/consolation for me, please? 🎃

Are you sure they're not a green variety?

Some pumpkins are meant to be green.

I'm not sure, no. DH planted them and lost/threw away the packet. 🙄

Any suggestions for using them?

If they're actually under ripe and not meant to be green- there are a few recipes for making "mock apple" from green pumpkin. This one is similar to what I used:

foragerchef.com/green-pumpkin-pie/

It kind of works... sort of. I would've used way more sugar or maple syrup etc. Under ripe pumpkin and apple aren't actually the same, but weirdly the texture when cooked is similar.

Curry’s.thia and indian
use like courgette for recipes but cook for longer

Maybe they are a green variety like Delica or Crown Prince? For eating I much prefer the green varieties, the flesh is dense and has much more flavour. I usually use a Japanese recipe for braising or a soup.

Roasted in chunks like potato.
Thinly sliced and stir fried.
In curries and stews.
Soup.

You could use them as a base for a chutney.