I Love My Mother In Law

I won't even lie I do, but I started back to work last week and since then she won't stop cooking our dinner and bringing it to us. I need her to stop without offending her. We can't possibly eat all that soup, it's enough for a dozen people and theres like two of us since the baby isn't even going to try it.

Does she think her son eats that much?

Is she indirectly calling me fat?

She's never done this before and I'm not being ungrateful I just need a polite inoffensive way to tell her to stop because cooking is one of the things I still find somewhat enjoyable and there's not 20 people living in our home.