I had the same problem as you, trying to translate large breed feeding into small dog portions. I ended up just sort of making up as I went. I have an 8 lb Jack Russell mix and I use See Spot Live Longer, and 5 oz of meat (whole, cut up roaster or fried chickens, beef heart, ground pork, chicken heart, gizzards– all cheap in my area), and about once a week I’ll give just a 5-6 oz portion of a chicken leg or thigh, with no pre mix (the extra calcium in the pre mix makes his poop too hard when he gets bones lol). I use just under a tablespoon of mix, since the directions are 2 tablespoons per pound of meat, and I give him 5 oz. I freeze each portion of meat in quart freezer bags, and thaw daily, serving at room temp (in fridge over night, and then taken out a few hours before serving).
The pre mix is mixed into a little water (probably about a tablespoon or two), and the meat is served in large pieces, with the exception of hearts and gizzards, which are cubed into 1 inch squares, and obviously the ground meat. The mix is even so good that he licks the bowl completely clean– and he hates most veggies! Lol
