I treated myself to a Green Johanna hot composter www.greatgreensystems.com/product/green-johanna-330-litre-hot-composter/
Expensive, but I had the same problem as you Etheldreda, with not being able to recycle cooked food etc.
I chose this one because it is made in the UK from 100% recycled plastic, and is sealed so rats can't get into it.
So far so good, but I've had it less than a year, so haven't taken out any compost yet. It's big and I was dreading setting it up on my own, but it was much easier than I thought once I'd worked out which way up everything was meant to be!
The other alternative for cooked food is a wormery which is smaller. I don't eat meat fish or dairy, but I've read that small quantities are okay.