Do you like broccoli? Steamed broccoli can really fill you up.
Another good veggie that will fill you up and is like comfort food to me is mashed cauliflower. I take a carton of College Inn light chicken broth and heat in a saucepan, then add a head of cauliflower chopped into sections, cover and steam on medium low for about 20 min. Then mash, stir and eat. It's so good and almost has a buttery flavor from the broth.
The first week is rough, drink lots of water and have plenty of salt.
It gets easier! I was this close to quitting in my first week, then felt better the next day, especially when the scale dropped a few pounds.