My meniscus trim was also a non-event compared to other knee surgeries. I was hobbling around going into the hospital and walked out. But I still did a lot of rehab, etc.
And I've had some residual pain with it off and on over the years - like most people - once you tear the meniscus you probably did some damage to the articular cartilege too. They clean it up, but it's not nice and smooth like new and that means you have arthritis. Not to mention the fact that you're now missing part of the fat pad that provides cushioning for your knee means it's going to deteriorate faster than it would with it in place. So you're bound to get some pain now and then when you're overdoing it. All you can do is build up the muscles and try and keep your leg strong and avoid unnecessary hard impacts. (i.e. my doc said since I don't want to give up skiing, giving up running is a good idea if I replace it with elliptical/bike/etc.)
"Life should not be a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and loudly proclaiming, "Wow, what a Ride!"
Bookmarks