Perhaps try hiding your vegetables; my grandmother, a”h, used to “hide” vegetables in mashed potatoes and give it to the kids (spinach works well). You can try adding cauliflower to your potatoes as well. Kugels are a nice way to get vegetables, and you can even try making roasted veggies; zucchini, butternut squash, acorn squash (with butter, brown sugar, and cinnamon), carrots, cauliflower, broccolini, etc. are all very yummy roasted.
You can even try making latkes made from vegetables like carrots, zucchini, and whatnot.
You can also make a braised red cabbage. Red cabbage braised with onion, apple, raisins, a little sugar, and some apple cider vinegar is a delicious vegetable dish, and very nutritious.
I’ve been losing a nice amount of weight by replacing starches with vegetables. I eat Israeli salad every morning, with a hard-boiled egg, and some cold asparagus or broccoli, for lunch, I have a salad of spinach, yellow peppers, chick peas, and cucumbers, and for supper, I’ve been eating smoked salmon with steamed broccoli, a leafy green (such as kale, cabbage, or chard), lemon for flavor, and tomato, onion, and capers. I also like making new kinds of vegetable stews and soups without added oil, and experimenting with new stir-fry dishes, too. I have about 150 lbs, in total to lose, and for me, this is a new way of life more than anything else.