If you regularly consume sufficient amounts of organ meat, including beef liver, you’ll get all the nutrients your body requires. So there's no need to worry about your veggie intake, in my opinion. More important than getting the required amount of vital nutrients is getting the right and most-usable nutrients.  Organ meats contain heme iron and retinol (aka the real vitamin A). Plants contain the inferior non-heme iron and beta-carotene (a precursor to vitamin A). Both are examples of nutrients found in plants that the body can’t absorb and use as well as their animal-based counterparts. I’m not recommending avoiding seasonal fruits and certain veggies (I eat them), but I remain unconvinced as to their importance in the context of human evolution. You can learn more about the nutritional differences between meat and plants in this article.