Sweet Potato Lime Salad

2 large sweet potatoes or yams
2 – 3 limes (depending on how big and juicy they are)
1 tablespoon olive oil
1/3 cup chopped cilantro
Pinch cayenne
Sea salt

Heat oven to 425°F. Peel and cut the sweet potatoes into 1/2 inch cubes. Spread on a rimmed baking sheet, toss with a little olive oil and roast for 15 minutes or until tender. Let cool and put in a bowl. Zest one of the limes. Toss the sweet potatoes with the zest, juice from all the limes, olive oil, cilantro, cayenne and sea salt. Taste and add more salt or cayenne if desired.