Ingredients

  • 4 cups 1-inch cubes of day-old country bread
  • 1 1/2 cups milk
  • 3 medium zucchini
  • 3 large stalks celery, peeled
  • 2 red bell peppers
  • 2 sweet onions, such as Vidalia or Walla Walla
  • 1 cup finely chopped scallions (about 1 small bunch)
  • 2 cups grated Grana Padano or Parmigiano-Reggiano
  • 4 ounces provola, cut into small cubes
  • 1/2 cup chopped fresh Italian parsley
  • 1 tablespoon kosher salt
  • 10 tablespoons extra-virgin olive oil

Method

  • Preheat the oven to 400 degrees F. Pour the milk over the bread in a bowl, and let sit for 20 minutes, pressing the bread into the milk.
  • Prepare the vegetables for stuffing: Halve the zucchini crosswise, then lengthwise, to make twelve pieces.
  • Scoop out the centers to make boats.
  • Finely chop the scooped-out centers, and put them in a large bowl.
  • Cut the celery stalks into 4-inch lengths.
  • Cut each bell pepper into four segments, at the natural breaks in the ribs, and remove stems and seeds.
  • Peel onions, halve them crosswise, then cut each in half crosswise again, to get eight rings in all.
  • Remove the inner pieces of onion, to make onion boats.
  • Set the boats aside, and chop and reserve the smaller inner parts of the onions.
  • Squeeze the excess milk from the bread.
  • Combine the bread with the chopped zucchini.
  • Add the scallions, 1 cup of the grated cheese, the provola, the parsley, and 1 teaspoon of the salt.
  • Mix well.
  • Season the vegetables to be stuffed with 1/4 cup olive oil and the remaining 2 teaspoons salt.
  • Brush two large baking dishes with 3 tablespoons olive oil each.
  • Scatter the chopped onion in the bottom of the baking dishes.
  • Fill the vegetables with the stuffing, and put the stuffed zucchini and peppers in one dish, the onions and celery in another.
  • Sprinkle the tops of the vegetables with the remaining 1 cup grated cheese.
  • Cover the baking dishes with foil, and bake until the vegetables release their juices and are almost tender, about 30 minutes.
  • Uncover, and bake until vegetables are tender and the stuffing is browned and crispy, about 30 minutes more.
  • (The peppers and zucchini may be done before the onions and celery; check them after 20 minutes.)
  • Serve warm or at room temperature.