My mother in law expects to be waited on hand and foot: Advice?

How do I deal with my MIL expecting to wait on hand and foot at my house at all times? Every time we have them over, she sits back, relaxes, and waits to be called to the table for dinner. We prepare the food, set the table all while she sits back and watches. Once dinner is finished, she, again, sits back, plays with my daughter, and allows us to clear her plate and do the dishes, all without lifting a finger. I just don’t know how to get the point across that this is not a hotel, and I would rather not host you at all than being treated this way. Send help!

Oh man that’s tough. On one hand, I don’t expect guests to lift a finger when they are visiting my house. I go into hostess mode. But on the other, she is family and could at least help out.