Here's a few other uses I've seen --

Sliced fairly thin and baked onto a cheese pizza. Seen on a Pizzeria
menu as a regular item.

Haven't tasted it for years, but I really like Piccalilli, aka Chow Chow
or Green Tomato Relish. Green tomatoes, cabbage, bell pepper, onion,
vinegar, pickling spices and other things. Canned in glass jars. Really
great in the dead of winter.

Substitute for tomatillos, as in Green Tomato Salsa.