I am just getting back into camping, etc. after many years. I have had a look at some 'ready made' packaged meals in the local supermarket, but frankly they are dreadful, with some sort of artificial meat products, etc. Dehydrated foods are expensive at my local Outdoor Centre and from memory, don't taste great, or even vaguely like freshly cooked food. I had hoped technology over the years might have improved things, but sadly not
They are OK if you need a quick meal after a long time in the saddle and you cannot be bothered to cook a meal at the expense of pub time, etc. but not for everyday eating on an extended trip.
Have a look at this site over on Horizons Unlimited.
http://www.horizonsunlimited.com/hubb/the-hu-bar/cooking-road-your-one-pot-44305
There are some good ideas and also videos of the cooking, etc. Weight and fuel are not going to be a big issue on a motor bike and although many of these recipes are for one pot, I think I would bring a second (probably gas fuelled) burner for convenience and better simmering.
If I was just going for 2-3 days, then I would make up a Chile Con Carne/Spag Blog or a Curry at home, freeze it and then would only require to thaw and reheat it, plus cook the pasta or rice.
You can also try making Bannocks (unleavened bread/flat bread). Very easy to do, especially if you premake the dough at home and bring it with you in a plastic bag or plastic container.
Of course you can eat out occasionally, though that is likely to be expensive if you are in a place like Norway or Iceland.
Grey Beard