Beans and brown rice would be… unless you’re eating the whole cow. But actually, it’s surprising how many things like preservatives get added to things like ground beef.
If it’s unprocessed beef it could be considered a whole food — but often people don’t bother checking the ingredients for the meat they buy and just assume that it doesn’t have things added.
That said, there is research that points to eating too much beef and other red meats potentially being bad for health.