I came up with a new burger for my 2 little pups. It contains ground chicken gizzards Chicken hearts That are ground Today I used ground eye of round beef. But any ground beef will work Then mixed them all together and made patties 1/2 cup each in size And cook them on the grillThey both love gizzards and I used to cook them whole and then cut them into small pieces because they are so tuff and rocket is small and dainty. They didn't get any of these tonight they got this 80% hamburger, dark meat chicken, mixed meat hotdog and cheese. The gizzard, heart and beef burgers actually taste good so when cooking theirs I spice a few up for me too.