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Tuna Steak and Vegetable Sandwiches

This Mediterranean-inspired tuna steak and vegetable sandwich is an excellent choice for a sophisticated, high-protein lunch or a light evening meal. By combining fresh, seared tuna with charred aubergine, sweet yellow peppers, and crisp courgette, it offers a wonderful contrast of textures and a deeply savoury flavour profile. The balsamic and marjoram marinade provides a bright, herbaceous lift that perfectly complements the richness of the fish.

Ideal for those seeking a nutritious homemade alternative to standard deli sandwiches, this recipe uses toasted sourdough to provide a sturdy and crunchy base. The addition of peppery rocket and fragrant garlic ensures every bite is packed with character. Serve these warm for a satisfying meal that is both heart-healthy and incredibly simple to prepare in under thirty minutes.

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Ingredients for Tuna Steak and Vegetable Sandwiches

  • 180ml plus 2 tablespoons olive oil

  • 45ml balsamic vinegar or red wine vinegar

  • 45ml chopped fresh marjoram or 2 teaspoons dried

  • 2 garlic cloves, minced

  • 3 Japanese aubergines, trimmed, cut lengthwise into 1/3-inch-thick slices

  • 2 courgette, trimmed, cut lengthwise into 1/3-inch-thick slices

  • 1 yellow pepper, cut into 1/3-inch-wide strips

  • 8 1/2-inch-thick slices country bread or sourdough bread

  • 450g tuna steak, cut crosswise into 1/4-inch-thick slices

  • Chopped fresh marjoram or pinch of dried

  • Rocket

How to make Tuna Steak and Vegetable Sandwiches

Preheat grill. Combine 180ml oil and next 3 ingredients in small bowl. Arrange aubergine slices, courgette and pepper on grill pan. Brush on both sides with oil mixture. Sprinkle with salt and pepper. Grill until brown, watching closely, about 2 minutes per side. Transfer to platter. Place bread on grill pan. Brush top side with oil mixture and sprinkle with pepper. Grill until top side is brown. Transfer to work surface, browned side up.

Meanwhile, heat 2 tablespoons oil in heavy large skillet over high heat. Season tuna with salt and pepper. Add to skillet and sauté until just cooked through, about 30 seconds per side. Place tuna on half of bread slices. Sprinkle with chopped marjoram. Top with vegetables and rocket, then remaining bread slices, browned side down.

Descargo de responsabilidad

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.

Historia del artículo

La información de esta página ha sido revisada por médicos cualificados.

  • 17 Enero 2026 | Publicado originalmente

    Autores:

    Editores de recetas del Reino Unido

    Revisado por expertos

    Editores de recetas del Reino Unido
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