Heat oven to 375°F. Lightly spray cookie sheet with cooking spray. Mix cheeses and mayonnaise until well blended and soft.
Unroll dough on work surface. Spread cheese mixture evenly over dough. Starting with 1 short side, roll up rectangle; pinch edges to seal. Cut roll into 16 slices. Place cut side down on cookie sheet. Sprinkle with parsley.
Bake 12 to 15 minutes or until golden brown. Immediately remove from cookie sheet; cool 3 minutes. Serve warm.