One of the first things I learned from my mother about cooking meat is that fat=flavor. If you have lean cuts of meat, you often need to do something to introduce fat back into the meat just to make it taste better and to help keep it from drying out. Along those lines, here’s a trick you can use with a pork loin roast, a relatively lean cut, to bump up the flavor and keep it juicy. Just brown the roast first on the stovetop, then wrap it in strips of bacon to roast. As the roast cooks, the bacon will bathe it in flavor.
Are you familiar with Cook’s Illustrated? It’s a magazine and a website from the same people who create the PBS show America’s Test Kitchen. It’s the only cooking show we watch with any regularity, and we read each issue of the magazine from cover to cover. What I love about the magazine is that they go into great deal of detail about the how’s and why’s of various cooking methods; I always learn something new. (What I don’t love about the magazine is that they tend to overcomplicate things, just for that n-th degree of perfection.)