Preheat oven to 450°.
Unroll pizza crust dough onto a baking sheet coated with cooking spray; pat into a 12 x 8-inch rectangle. Bake at 450° for 9 minutes.
Sprinkle chicken with Italian seasoning. Heat a large nonstick skillet over medium-high heat until hot. Add chicken, and sauté 3 to 4 minutes or until done.
Spread pesto evenly over pizza crust; top with chicken, and sprinkle with cheese. Bake at 450° for 5 minutes or until cheese melts. Cut into 8 pieces.