Heat grill to high. Grill corn until charred on all sides, 10 or so minutes. Take off the grill and remove the kernels with a sharp knife. While you are cutting the corn, put a cast iron skillet on the grill to heat.
Add the corn and the remaining ingredients to the hot pan and cook, stirring occasionally, until creamy and heated through. Serve with the steak.
Recipe courtesy of Bobby Flay, 2008