We have high end grocery near us. Budget store is 4 miles away. They have nice meat dept. have 7oz gourmet burgers for 1$. All varieties have chopped mushrooms, cheese or other filler. I asked butcher if they had non-filler, all meat versions? Yep, for twice the price. And the gourmet burgers are made from lesser quality meat while the regular burgers are made from better meat. So they add floor sweepings/filler to cheap meat to make the, taste better? Sneaky. But than all ground meat is nasty. But I do eat it. I am a carnivore you know.