What Bill said, Leftovers. Already prepared and just needs to be warmed up.

Agree with Bill regarding leftovers. Another simple favorite if we don't have leftovers are the easy skillet dinners from the freezer aisle at the grocery store such as PF Chang's or other prepared foods I don't normally buy but are simple to make. We've also found some really good, microwaveable dinners at Trader Joe's in the freezer section. Again, not something we buy very often but works well for meals on the road.

Leftovers. It's very common for us to do a crock-pot of something the day before travel day (unless we are dry camping) so we have an easy meal for the next couple days after landing someplace.

Sammiches.....

.....seriously, we don't travel much with our RV and when we have, we stopped and set up in an RV park or campground.  However, in the last few months we have made a trip from Colorado back to Oklahoma and twice to Idaho.  If possible before hand, Jo fixes up a meat salad (ham salad, turkey salad, chicken salad) mix and we take that along in our vehicle, especially if we decide to make the trip all in one day.  A quick stop for fuel allows us a few minutes to throw together sandwiches with the meat salad, and perhaps some chips from the convenience store where we fill up.

Terry