The ingredients are very simple:
4 sweet potatoes
Preheat oven to 375 degrees. Peel the sweet potatoes and cube into 3/4" chunks. Place in a bowl, drizzle with olive oil, and toss with hands to thoroughly coat.
Place in a 9 x 13" pan, sprinkle with a bit of salt, and roast in preheated oven for 35 mins. While they are roasting, slice leek lengthwise and then in even, 1/4" slices.
Add to sweet potatoes and combine well.
Continue roasting another 10-15 mins., or until sweet potato cubes are fork tender. Serve immediately. They also reheat really well. I also like to add the leftovers (cold) to a salad. Yum!