Ingredients

  • 1 recipe Push-Button Pizza Dough
  • 1/4 cup chopped walnuts
  • 1 cup shredded provolone cheese (4 oz.)
  • grated Parmesan cheese (optional)
  • 1 Tbs. balsamic vinegar
  • 1 Tbs. olive oil, plus more as needed
  • 2 to 3 cups halved, thinly sliced onions
  • 8 oz. baby spinach leaves, rinsed well (4 to 5 packed cups)
  • 2 medium cloves garlic, minced

Method

  • Prepare pizza dough as directed.
  • While dough is rising, in large, nonstick skillet, heat 1 tablespoon oil over medium heat.
  • Add onions and cook, stirring often, until golden, about 8 minutes.
  • Stir in spinach, sprinkle lightly with salt, cover and cook just until spinach wilts, about 2 minutes.
  • Stir in garlic and vinegar, cover and cook 1 minute.
  • Remove from heat and set aside.
  • Prepare grill, leaving one side unlit.
  • Lightly oil 2 baking sheets.
  • Gently punch down dough, divide in half and knead each half into a ball.
  • Place dough balls on lightly floured surface, cover with plastic wrap and let rest 8 minutes.
  • Using rolling pin, roll each ball into 9-inch circle, about 1/4 inch (scant) thick.
  • Transfer to prepared baking sheets and lightly brush entire
  • surface with oil.
  • Cover with plastic wrap and let rest 10 minutes.
  • Carefully lift each dough circle off baking sheet and place on hot side of grill.
  • Cook undisturbed 1 1/2 to 2 minutes, so bottom has a chance to set; top of dough will bubble.
  • Using large spatula, flip dough over onto same hot side of grill and cook 1 to 2 minutes.
  • Slide crusts to cooler area of grill.
  • Evenly spread spinach mixture over crusts; season with freshly ground pepper to taste.
  • Sprinkle with walnuts and provolone.
  • Close grill and cook, periodically moving pizzas around to keep charring to a minimum, 3 to 4 minutes.
  • Transfer pizzas to cutting board, dust with Parmesan if desired, slice and serve.