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BBQ Eggplant Sandwiches with Provolone and Mushrooms

Savory vegetarian sandwiches featuring broiled BBQ-glazed eggplant, melted provolone cheese, and sautéed mushrooms and onions, served on toasted ciabatta rolls with a kick of pepperoncini.

4 servings
22 min
Published October 4, 2025

Ingredients

  • •1 large large eggplant (about 1 1/2 pounds), trimmed and sliced lengthwise into four 1/2-inch thick planks
  • •½ cup BBQ sauce, divided
  • •1 teaspoon kosher salt
  • •½ teaspoon freshly ground black pepper
  • •8 ounces cremini mushrooms, thinly sliced
  • •1 whole red onion, halved and sliced into thin wedges
  • •2 tablespoons vegetable oil
  • •4 slices provolone cheese (1/8-inch thick slices)
  • •4 rolls ciabatta or hoagie rolls, split and toasted
  • •¼ cup mayonnaise
  • •2 whole jarred pepperoncini peppers
  • •thinly sliced

Cooking Instructions

  1. 1.

    Position oven rack six inches from the heat source and preheat broiler on high. Line broiler pan or rimmed baking sheet with foil.

    5 min

  2. 2.

    Brush eggplant slices on both sides with 2 tablespoons BBQ sauce and season with 1/2 teaspoon salt and 1/4 teaspoon peeper. Arrange slices on foil-lined pan.

    3 min

  3. 3.

    Broil eggplant until browned and soft, about 4 minutes. Meanwhile, in a medium bowl, toss mushrooms and red onion with oil, 1/2 teaspoon salt, and 1/4 teaspoon pepper and reserve.

    4 min

  4. 4.

    Remove broiler pan from oven, flip eggplant slices, and brush with 2 more tablespoons BBQ sauce. Scatter mushroom mixture around the eggplant on the pan and broil until browned and soft, about 3 minutes more. Add 1 slice of cheese to each eggplant plank and continue to broil until cheese is melted and browned, about 2 minutes more.

    5 min

  5. 5.

    To assemble the sandwiches, brush the top toasted half of each roll with 1 tablespoon mayonnaise and each bottom half with 1 tablespoon BBQ sauce. Layer an eggplant slice, some mushroom mixture, and a few slices of pepperoncini on the bottom of each roll. Close the sandwiches and serve immediately.

    5 min

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