Ingredients

  • 1 sheet frozen puff pastry, thawed for 30 minutes
  • 2 tablespoons olive oil, divided
  • 12 lb bulk Italian sausage
  • 1 small red onion, sliced
  • 12 lb fresh wild mushroom, thickly sliced (stemmed shiitake, oyster, or chanterelle)
  • 1 teaspoon finely chopped fresh rosemary
  • salt
  • pepper
  • 1 34 cups grated mozzarella cheese
  • chopped fresh parsley

Method

  • Line a baking sheet with parchment paper; on a lightly floured surface unfold pastry sheet and gently roll out to a 14 x 12 inch rectangle.
  • Transfer pastry to baking sheet and prick all over with a fork.
  • Chill pastry, covered, at least 30 minutes and up to 1 day.
  • Preheat oven to 400.
  • Heat 1 tablespoon oil in a big nonstick skillet over med-high heat; add in sausage; saute until brown, breaking into 1/2 inch pieces with the back of a spoon, about 5 minutes.
  • Using slotted spoon, transfer sausage to a bowl; add onion to skillet; saute until crisp-tender, about 2 minutes; transfer to plate.
  • Add remaining oil to skillet; add mushrooms and rosemary; sprinkle with salt and pepper; saute until brown, about 5 minutes.
  • Bake pastry in middle of oven 15 minutes until light golden.
  • Layer sausage, onion, and mushrooms over pastry leaving a 1 inch border.
  • Sprinkle with cheese; bake pizza until crust is golden brown and cheese is melted and bubbling, about 10 minutes.
  • Sprinkle with parsley; cut into squares and serve.