Preheat oven to 350°. Place a greased 9-in. springform pan on a double thickness of heavy-duty foil (about 18 in. square). Securely wrap foil around pan. Unroll 1 tube of crescent dough and separate into triangles. Press onto bottom of prepared pan to form a crust, sealing seams well. Bake until set, 10-15 minutes., Meanwhile, in a large skillet, heat oil over medium-high heat. Add spinach and mushrooms; cook and stir until mushrooms are tender. Drain on several layers of paper towels, blotting well. In a large bowl, whisk 6 eggs, Parmesan cheese, Italian seasoning and pepper., Layer crust with half each of the following: ham, salami, provolone cheese, red peppers and spinach mixture. Pour half the egg mixture over top. Repeat layers; top with remaining egg mixture., On a work surface, unroll and separate remaining crescent dough into triangles. Press together to form a circle and seal seams; place over filling. Whisk remaining egg; brush over top., Bake, uncovered, until a thermometer reads 160°, 1 to 1-1/4 hours, covering loosely with foil if needed to prevent overbrowning. Carefully loosen sides from pan with a knife; remove rim from pan. Let stand 20 minutes.