Hi Mo; Welcome to the Forum. No Avocados since it is high in fat. I normally Stir-Fry my veggies with a little Soy Sauce. Salt is okay, but watch the quantity since too much can cause you to retain water.
Sorry, I don't feel chatty tonight. I am down with the flu. I am sure one of the other posters will respond also.
Try to google 'negative calorie foods' it will explain a lot, while giving you a choice of acceptable vegetables.
Good luck.
