Ingredients

  • 1 (16 ounce) round loaf sourdough bread
  • 14 cup balsamic vinegar
  • 1 tablespoon olive oil
  • 1 teaspoon dried oregano
  • 1 teaspoon dried parsley flakes
  • 14 teaspoon pepper
  • 2 garlic cloves, minced
  • 1 cup sliced fresh mushrooms
  • 1 large tomatoes, sliced
  • 2 red onion rings, separated into 1/4-inch rings
  • 2 cups shredded zucchini
  • 8 ounces lean turkey, sliced
  • 6 ounces part-skim mozzarella cheese, sliced

Method

  • Slice bread in half horizontally, using an electric or serrated knife.
  • Carefully remove soft bread from inside each half, leaving 1/2-inch-thick shells.
  • Set aside; reserve soft bread for another use.
  • Combine vinegar and next 5 ingredients in a shallow baking dish; add mushrooms, tomato slices, and onion rings.
  • Let stand 15 to 20 minutes.
  • Drain with a slotted spoon, reserving marinade.
  • Brush marinade evenly inside each bread cavity.
  • Spoon 1 cup zucchini into bottom half; arrange half of mushroom mixture over zucchini.
  • Layer with 4 turkey slices and 3 cheese slices.
  • Repeat layers with remaining zucchini, mushroom mixture, turkey, and cheese.
  • Top with remaining half of loaf.
  • Wrap loaf securely in heavy-duty aluminum foil, and chill until ready to serve.
  • To serve, unwrap and slice loaf into wedges.