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BBQ Aubergine Sandwiches with Provolone and Mushrooms

This BBQ aubergine sandwich is a hearty vegetarian option that brings a deep, smoky flavour to your midweek meal rotation. By grilling thick planks of aubergine with a rich barbecue glaze, the texture becomes wonderfully tender, mimicking the satisfaction of a traditional steak sandwich. The addition of melted provolone cheese and earthy cremini mushrooms creates a savoury profile that pairs perfectly with the slight heat of sliced pepperoncini peppers.

Ideal for a quick lunch or a casual Friday night dinner, these sandwiches are best served in toasted ciabatta rolls to provide a sturdy, crunchy contrast to the soft filling. The combination of creamy mayonnaise and tangy sauce ensures every bite is succulent and full of character. This recipe is an excellent way to enjoy seasonal aubergines while keeping your cooking simple and stress-free.

Continue reading below

Ingredients for BBQ Aubergine Sandwiches with Provolone and Mushrooms

  • 1 large aubergine (about 675g), trimmed and sliced lengthwise into four 1/2-inch thick planks

  • 120ml BBQ sauce, divided

  • 1 teaspoon kosher salt

  • 1/2 teaspoons freshly ground black pepper

  • 230g cremini mushrooms, thinly sliced

  • 1 red onion, halved and sliced into thin wedges

  • 2 tablespoons vegetable oil

  • 4 slices provolone cheese (1/8-inch thick slices)

  • 4 ciabatta or hoagie rolls, split and toasted

  • 40g mayonnaise

  • 2 jarred pepperoncini peppers, thinly sliced

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

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

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

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

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 aubergine slice, some mushroom mixture, and a few slices of pepperoncini on the bottom of each roll. Close the sandwiches and serve immediately.

Disclaimer

While every effort has been made to ensure the information is accurate and up to date, individual needs may vary and dietary requirements can differ based on personal health conditions. Always check food labels and allergen information before preparing or consuming any recipe. If you have specific health concerns, allergies, intolerances, or are following a medically prescribed diet, seek advice from your GP, pharmacist, or a registered dietitian before making significant changes to your diet or lifestyle.

Article history

The information on this page is peer reviewed by qualified clinicians.

  • 28 Jan 2026 | Originally published

    Authored by:

    UK recipe editors

    Peer reviewed by

    UK recipe editors
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