Hello, JMitch, and happy holidays.
I introduced vegetables into my diet very slowly, around my 2nd month after reversal. I started with spinach that was steam-wilted to very soft. Remove the stems and use only the leaves. I added big bunches of spinach to simmering soup at the last few minutes while the pot was still simmering on the stove, lid put back on, and the spinach allowed to wilt in the hot liquid. You might need to push down and stir the spinach. This takes around 2 minutes so that why it's added at the last few minutes of cooking. Spinach wilts down to very little so you can add huge amounts. Spinach doesn't need to be boiled to grey mush, just wilted, keeping it green coloured. It has lots of vitamins and minerals, is low calorie and one of the best greens.
I also ate zucchini. Make sure you peel the zucchini because the skin might be too hard for your new pouch to process right now. The zucchini flesh was sliced or chopped. Drizzled with olive oil and salt (you need the salt now) and put under the broiler until slightly browned. I made big pans of zucchini so I'd have lots. Steamed broccoli is a vegetable I was able to eat from the start, I don't know why, since it is a firm vegetable. Broccoli is mostly insoluable fiber so I steamed it well before eating.
Sweet potatoes are good and have more nutrition than white potato. Leave the peel in, and poke lots of holes all over the sweet potato with a fork to allow steam to escape, put into the microwave for 5 minutes or more, until it feels soft. Slice open and scoop with a spoon!
I couldn't eat salads (lettuces) for at least a year or longer. It caused minor problems for me, but if you miss your salad and chicken meals try it in very small, well-chewed amounts and see how it goes.
Google and choose vegetables that are soluable fiber (turns to mush in the digestive system and comes out soft). Introduce the in-soluable vegetables later on (these don't break down in the digestive system -- like skins and peels -- and pretty much comes out the way it went in!)
At my 2nd month my surgeon told me to start re-introducing foods and vegetables slowly, one item at a time so you know next day how it's going. Just remember to chew, chew, chew very thoroughly so your pouch receives food that is already pulverized. I hope you can eat and enjoy many foods over this holiday season. Best wishes and happy new year!