If you are not on the Low Fodmap diet, you can substitute the green onion stalks with half an onion, finely chopped.
You can also add 2 tablespoons of finely chopped celery (with the carrots).
You can substitute the ½ tablespoon of garlic-infused olive oil with the same amount of extra virgin olive oil and 1 small clove of garlic, finely chopped to be added together with the other vegetables.
You can use any vegetable stock.