Thats what i reccomend as well, though i change the diet up if not daily then literally every meal so it keeps me guessing and i don't get bored of the same food again and again etc. I'll do for example one meal pasta based, next meal rice based, next meal potato based, next meal bread based, next meal bean based etc etc. This also gives me a very wide variety of nutrients. And i mix different meats and dairy e.g. beef, chicken, pork, lamb, veal and for dairy i do milk, cheese, cream, sour cream, butter, yoghurt. Basically all the good old fashioned full fat untouched and unprocessed stuff.