Greek veggie stock can be used for a number of recipes such as lentils, fava beans, or any other bean, veggie or soup recipe. Making veggie stock is pretty simple, and it's especially great when you save up veggie scraps from cooking and put them in the freezer. All you need to do is boil any vegetable scraps on very low for three hours and then you have veggie stock! The best veggies to use are carrots, peppers, onions, and greens such swiss chard. I always like to add a large glug of olive oil in my veggie stock to add a little bit of extra fat and flavor.