Philly Cheesesteak Calzones

Preheat oven to 500°. In a large skillet over medium heat, heat 1 tablespoon oil. Add peppers and onions and cook until soft, 5 minutes. Remove from pan and reserve on a plate.  Return skillet to heat and heat remaining tablespoon oil. Add steak in a single layer and season with salt and pepper. Cook until steak is golden and seared, about 2 minutes per side.  Divide dough into 4 equal pieces. On a lightly floured surface, roll one piece of dough out into an 8" circle, about ¼" thick. In center, top with steak and peppers and onions, then sprinkle with cheese. Gently fold dough in half and crimp edges all around. Repeat with remaining dough.  Transfer calzones to a large baking sheet. Brush tops with oil and sprinkle with salt and pepper. Using kitchen scissors or a sharp knife, slit tops in 2 to 3 spots to create steam vents.  Bake until tops are golden and filling is bubbling, 15 minutes, brushing with more oil halfway through.  Let cool 5 minutes before cutting open.