Good tomato, bad tomato

Good tomato:

Still getting red tomatoes, about 4 a day, but only the smaller ones (cherry and gardener's delight)

Bad tomato:

Not had a single san marzano go red, some haven't grown properly - I think because of underwatering this one in particular:

Here's a moneymaker, and below a cherry tomato going brown on the vine, I think because the temperature's dropping and the stems are going brown before the tomatoes get chance to ripen. 

So the hunt is on for green tomato recipes! Like the Nigel Slater chicken recipe I tried last week.