That's great! I'm also working with an RD for reactive hypoglycemia, and have the same carb limit (and need to hit 120g protein). A bit tricky but do-able, hope you feel better and see results soon!
Can you give me an idea of how it works? I'm struggling to put this together without going full Atkins and that sounds awful.
I think Atkins is under 50g of carb? 120g is far more flexible/realistic, but you do have to pay attention to labels. Basically, I eat 5-6 times a day, and shoot for 20g of carb and 20g of protein at each meal. No attention to calories or fat content so far; maybe some point down the road the RD will make it more specific but this is the currrent approach. I work an office job and pack my food, so it's pretty repetitious to keep it easy. I also shoot for 80-90oz of water each day.
So for breakfast, I typically have 3 eggs plus a carb: some days it's scrambled eggs with cheese, 1/2 of an english muffin and some cream cheese on the muffin; 3 eggs over easy with some fruit; 3 eggs scrambled with onion and pepper, with a whole wheat wrap, sour cream, salsa and cheese. I also love creamer in my coffee, and use the 'sugar free' coffeemate kind because it's only 2-3g compared to real creamer or almond/cashew milks; not thrilled with that nutrition-wise, but coffee with creamer is one of my non-negotiables in life.
Around 10am, 'snack' time, although it's close to a meal anyway. I usually grab a protein bar that's 18-20g protein--Pure Protein and ThinkThink high protein have been my favorites.
Lunch is often leftovers from dinner, or I have a Jimmy Dean breakfast bowl (both the regular and 'diet' versions are good on the protein/carb ratios). Subs are often good if you take off 1/2 of the bread too. Every now and then I get super motivated and prep salads for the week too
3pm-ish is another 'snack,' typically 2 cheese sticks (string, monterey, colby) or a 1/4 cup of nuts with a carb (sometimes a handful of chocolate, fruit, crackers, etc)
Dinner can get tough because everyone's tired/cranky, and both DH and C can be picky eaters. The best meals are obvious lean protein (chicken, fish) with a focus on veggies and wee bit of rice/pasta. Avoid potatoes and corn (starches). But we're real, and there's often chicken fingers, hot dogs, and spaghetti in there; I just pay attention and add cheese or whatever to make it work for me if it's higher carb. I really love making 'taco bowls' with the chicken or ground beef, cheese, sour cream, lettuce, salsa, and some crumbled tortilla on top.
Evenings, I'm often at my protein/carb level depending on lunch and dinner and/or not really hungry. But it varies a lot, more cheese or nuts is easy. Finding a protein shake that you can tolerate is also excellent for helping out with any of these meals (I can't tolerate whey, like Plant Fusion for myself so far). I will say that the first few days she dropped me to this level my energy was so low and I was cranky, but it evened out. If I were into a higher level of intensity for working out on a regular basis, I would ask for guidance on how to balance the carbs against your training schedule, because I would feel this would be incredibly difficult if I were still doing half-marathon training or anything that required endurance. Good luck, and ask any questions you may have
ETA: I just wanted to add that in general I've always really struggled with having enough veggies in my diet (love fruit); so that is something that can clearly be improved over time for me, and increased easily based on your preferences; for me there's basically no limit on veggies.