Since Sundays is more nutritionally dense than kibble, with 5,250 - 6,000 kcal/kg vs. ~3,500 in a typical kibble (and less than 1,750 in a refrigerated or frozen food, which is mostly water), it's common to feed less of it, roughly half as much as you're used to with kibble (by weight).

That said, every dog is different, and our feeding instructions are starting places (not be-all, end-all's), so we have plenty of room for flexibility based on your pups' needs!