PREHEAT oven to 425°F. Unroll pizza crust on lightly greased baking sheet. Pat out dough with fingers to form 12x10-inch rectangle. Bake 5 minutes.
MIX mustard, garlic and oil; spread evenly over dough. Sprinkle evenly with cheese and rosemary.
BAKE 8 to 9 minutes or until crust is deep golden brown and cheese is melted.