Mine used to be exactly the same and I used to think I must be a terrible cook. Then our Dd started saying she preferred hers different to dad, which in one way made me realise that it was just his taste, but then I found myself never able to please both of them which was even worse. (in her mitigation our DD is disabled and was bed-bound at the time so couldn't cook).
Eventually I just said, well you two never agree so I'm making it how I like it and if either of you aren't happy you'll have to cook. (by this time our DD was able to potter about the house a bit with difficulty but as I have major health problems it was just as hard for me anyway).
So they did start to cook the odd meal. And at first I would shower them with praise. But after a while, I might say, the chilli is a bit hot for my taste so I'll just eat a little with a lot of the rice, but thank you very much for cooking it. They got the hint when it was done to them.
Now the rule seems to be. 'Thank you for a lovely meal' if we enjoy it, or 'thanks for cooking tonight' if not, and no more said unless the cook specifically asks.
But it has taken ages to 'train' them.