I'm telling you, the diet they recommend for type 2 diabetics and gestational diabetics is often the nutritional opposite of what they need. Like most dietary recommendations, the medical and conventional wisdom frequently peddled lags far afield of what is actually the most healthy recommendation. There is a lot of research and lobbying pressure for lower fat, lower protein diet. But for someone with IR and progressions of metabolic syndrome, a diet with legumes, fruit, and much of any starch is going to be far worse for their blood sugar stability than a diet that is carbohydrate controlled with primarily protein, nutrient dense veggies, healthy fats, and nuts and low glycemic fruit sparingly.
It may be all mental hunger for you, but oftentimes those cravings are stimulated by elevated insulin levels, which your daily menu would most certainly cause in most people with metabolic syndrome. A notable side effect of therapeutic ketogenic and insulin controlling diets is a lack of even mental cravings, because it is the hormonal feedback loop from adipocyte to brain that often causes those cravings, even when your stomach is full.
It is worth noting, if you are vegetarian, that many protein sources for vegetarians are pretty inappropriate for insulin management. The pulses, in general, are bad news and don't digest as well as they are often reported to, even with soaking and sprouting. The soy based proteins have numerous issues as well. Whey is a good idea, cheese and eggs are also fine, and fish if you eat them. But plant based protein sources are almost always inferior energy for the cellular payback (essentially, they raise your insulin too much upon ingestion, when compared with a fattier and less starchy option like lamb, fish, or fatty beef). Just a side note to consider, but I was getting vegetarian vibes from your post
I linked Dr. Bernstein because it is truly a worthwhile read for you and anyone else in a similar position with IR and cravings (even just head hunger). It is always good to critically evaluate dietary recommendations, as most doctors have almost no nutritional training and too many nutritionists pump the 'standard government recommendations' for various dietary needs, which is often opposed to what is actually metabolically healthy. There's a shocking amount of misinformation out there, especially regarding insulin stability. So if there's anything I hope you or another person could take away from this, it is a peek into an alternative dietary recommendation with thousands of healthy, metabolically healed followers. Bernstein and similar programs really work wonders, and the management of carbohydrates is a huge component of that.
You can disagree with me on this, but I share the advice and link for your benefit, as someone who has researched this passionately! You don't know what might work for you until you try it, after all, and even someone like me with no detectable metabolic issues has seen incredible benefits in weight and hunger management through similar programs as those listed above