Make sure you put the potatoes on a single layer - do not overlap - this is to ensure the maximum roasting and caramelization of your potato.
Roasted Sweet Potato Circles
1.5 lbs sweet potatoes (I like the Korean/Japanese one for its texture, but you can opt to use the standard sweet potato/yam available at your local supermarket. It will still taste very good.)
Preheat oven to 425.
Slice the sweet potatoes into 1/2 in rounds. Toss them in olive oil enough to coat them and lay them on a single layer in a pan. Sprinkle salt on top. Bake in oven until golden brown - about 30 minutes (or longer depending on your oven.)These are the potatoes before being put into the oven. Note the single layer with no potatoes overlapping.