Unroll pizza crust dough, and place on a baking sheet coated with cooking spray; press to a 14- x 10-inch rectangle. Sprinkle dough with Italian seasoning. Bake at 425° for 7 minutes.
Spread pizza sauce over crust; top with mushrooms. Sprinkle with cheese. Bake 6 additional minutes or until cheese melts.
To serve, cut pizza into squares.