Low carb, low fat, low sugar recipes?

Hi all. My husband has chronically high triglycerides and has now been told, due to recent blood tests, to eat a low-carb, low-carb, low sugar diet. As a Texan he does love his beans and rice, also meat and potatoes--but potatoes are now a total no-go and only limited brown grains, no white rice, pasta etc. any great recipes out there you can recommend? He doesn't like shellfish and I am allergic too.