Basil Outdoors

This is the first time I can truly say there's been a success growing basil outdoors. ..3 varieties...lemon, purple licorice and genovese. This last one has the usual strong flavour that's expected in this variety.  The other 2 have a milder flavour. They grow in pots, next to the Black cherry variety tomatoes. Not sure how basil acts as companion plant etc, but the colours look good against the dark green of the tomato leaves.
All tomato plants had their first organic commercial feed 4 weeks ago.  Before this I just watered in some Epsom salts for fruit setting. That seemed to work as the small cherry tomatoes are loaded on the Totem variety, but not so much on the tall black cherry. Here's hoping the ripening process begins soon. Don't fancy too many green tomatoes...though I understand they are quite edible when cooked. Anybody got any experience cooking with green tomatoes?