You could make a curry with tomatoes and spinach. It's very warming.
Slice onion, usual suspects of spices or madras curry paste if you can't be fussed with them. Add cubed squash, quartered tomatoes (about 3) and water to cover. Bring to boil, lower heat, cover and simmer for about 20 minutes. Once it has thickened up and seaonings are to your liking, add spinach and cook off for 2 more minutes. Serve with rice.
I'm in the mood for saag now. Might go for this one, cheers!