There should be some new rare food or crown store only food that you can buy and put in your house. It would have reusable a cool down effect per character where the person could get a food the consume. I recommend the cooldown be either 20 or 24 hours.

The food would scale to the players level and there should be more than one type of food to make $$ and have diversity.
This would add a new element to the house editor for members that like have fancy homes.

Same concept can be added with drinks in the homes too.