LCHF diet, your body uses carbs for energy, if you don't eat carbs your body will look for another source of energy, the fat in your body, hence you will loose weight and fatty liver will get better. You should try to do exercise as well as another source of energy is muscle fibre.
You want to eat lots of protein, meats, fish, eggs, nuts, (some people find some nuts can cause high bg) full fat yogurt, cream, green vegetables, sweet potato
Cut out rice, bread, potatoes, sugar, lots of ready made and processed food contain sugar
There is lots of recipes on the site, have a look
With my other health issues, I find rather than following the idea breakfast, lunch and dinner should be made of certain foods, I eat what I fancy, so if I want cod for breakfast then I have it then.