Kyoto Style Sweet Potatoes with Miso, Ginger and Scallions

Ingredients

• yams sliced in half, lengthwise
• olive oil for brushing
• olive oil, coconut oil, butter or ghee
• large shallot, very finely diced
• teaspoons ginger finely minced
• tablespoon miso
• salt to taste
• Scallions, sliced