I think a family meal when ever possible is important - it's such a shame that modern houses are being built without dining rooms, and the norm is fast food on trays in front of the TV.
As advised, it's a great time to simply be together and talk to ech other.
We have convened at my parents-in-law's house for tea once a week for the last twenty-plus years, and I really look forward to it. As many as can make it get there, and we swap our stories and opinions - it's a great bonding experience.