Definitely leave the peel on. Sarah, your explanation is perfect. Throwing away the peel and crust of things is horrible because that is where most of the nutrients are! So definitely leave the peel on things if you can. Ditto sweet potatoes, apples, the pith of oranges (white stuff), etc.
We had a summer squash soup yesterday night. It was good...nothing exciting, but simple and good. Those zucchini patties are totally addictive and sooooo good!!!

Both my coworker and I love them. She and I both had "mushy middles" on some of them...they still tasted awesome, but we were both worried about the eggs having been cooked enough. When I make them again, I think I will use Eggbeaters or some pasteurized egg product to ensure that no one gets sick.
Those things are good, though. Enjoy!