I do it and I eat pretty much everything...
EXCEPT very high carb foods... potatoes (also a nightshade issue for me), sweet potatoes, and the like.
I do eat leaner cuts of meat quite frequently, such as skirt or flank steak, the only difference is in the portion and the preparation, and balancing it on the plate with fats, how about an avocado? Mmmm... like fajitas.
I also eat moderate carb foods such as winter squash... it's about normal portions. I don't need to eat a whole pound at dinner like you.
Last night I had a black cherry and balsamic reduction, OMG CARBS!!!... and stayed well below 50 carbs for the day.
Have a nice day.
You eat what you want...
Stop telling other people how wrong they are.
And how deprived they MUST be.