Construct idea: 

Animated roast animals. Chickens, pigs, all the way up to cows. The entire animal, roasted whole, moving around and acting normally. You can walk up to one with a knife and carve off hunks of meat, and they don’t care at all. The core of the body is nearly impossible to destroy, and, as long as you don’t do something extreme like strike one with lightning, they stay perfectly animate and continuing to feed and replenish any meat that’s taken. The meat doesn’t go bad or get dirty, and, if you want to change its seasoning, you feed the animal the seasoning you want it to taste like, with a very minor spell on it to get the taste to stay. 

Basically, you can keep, like, a small flock of zombie chickens, and occasionally you go out with a carving knife, feed them treats, and cut off your dinner for that day. It’s strange to get used to, cutting hunks off a living, moving thing, but they really do not care. They probably work like sheep and wool, where if you don’t cut pieces off now and then it grows too much and they get kinda bad at walking.