Pierce potatoes with a fork. Place potatoes on an ungreased 15 x 10-inch baking pan. Drizzle with olive oil; toss to coat. Bake for 30-40 minutes or until tender. Cool potatoes on a wire rack. Reduce oven temperature to 375°F.
When cool enough to handle, cut a thin slice off the top of each potato. Carefully scoop out center pulp into a large bowl, leaving each potato with a shell. Save potato pulp for a different recipe.
Combine raclette and parsley in a large bowl. Spoon filling into potato shells; return to the pan. Bake for 8-12 minutes longer or until cheese is melted and potatoes are warmed through.