From the Food Network.  Original recipe link.

Creamed Kale (serves 4)

2 pounds kale, center stalks removed
4 tablespoons unsalted butter
1 cup heavy cream
1/8 teaspoon ground nutmeg
Salt and freshly ground pepper

Instructions:

Blanch the kale in lightly salted water until tender, rinse in ice water, drain and cut into 1/2-inch ribbons. In a large saute pan over medium heat, melt the butter and add the kale, cream and nutmeg. Reduce the heat to low and cook for 5 minutes, or until the cream has reduced and thickened. Season with salt and pepper to taste.

Recipe courtesy of Bobby Flay