Introduction
Grilling seasonal vegetables and tender sirloin steak on a barbecue is a delightful way to celebrate outdoor dining. This recipe combines the robust flavors of roasted vegetables with succulent steak, all served on a crispy ciabatta loaf. Topped with creamy buffalo mozzarella and fresh basil, this meal is nourishing and packed with flavor. Perfect for a summer barbecue or a casual dinner, this dish brings together simplicity and gourmet taste.
Ingredients
1 ciabatta loaf
Olive oil
2 red capsicums
2 red onions
2 small green zucchinis
2 small yellow zucchinis
½ a bunch of fresh rosemary (15g)
350g higher-welfare sirloin steak
Balsamic vinegar
1 handful of fresh basil leaves
1 x 150g ball of buffalo mozzarella
8 tablespoons green pesto
Prep Time
20 minutes
Cook Time
25 minutes
Total Time
45 minutes
Yield
Serves 4
Detailed Directions and Instructions
Prepare the Barbecue
Prepare the barbecue for direct cooking over high heat, aiming for a temperature of about 290°C.
Toast the Ciabatta
Slice the ciabatta in half lengthways, drizzle with 1 tablespoon of olive oil, and place on the barbecue, cut side down, for 2 to 3 minutes until golden.
Prepare the Vegetables
Deseed and cut the capsicums into 2cm-thick slices. Peel the onions and cut into 1cm-thick rings. Slice the zucchinis diagonally into 1cm-thick pieces. Season the vegetables to taste.
Create a Herb Brush
Create a herb brush by tying the rosemary sprigs to the end of a wooden spoon with string. Dip it in a little olive oil and brush over the barbecue grates.
Grill the Vegetables
Place the prepared vegetables on the barbecue and cook for 10 minutes, turning frequently, until they are soft and caramelized.
Prepare the Steak
While the vegetables are cooking, slice the steak into 1cm-thick strips and season with sea salt and black pepper.
Toss the Vegetables
Transfer the grilled vegetables to a large bowl. Drizzle with 2 tablespoons of balsamic vinegar and 1 tablespoon of olive oil, then toss to combine. Tear over the basil leaves and mozzarella.
Grill the Steak
Dip the herb brush in a bit more olive oil and brush over the barbecue grates again. Add the steak strips and cook for about 5 minutes, turning occasionally, until browned. Remove from heat and let them rest for 1 minute.
Assemble the Ciabatta
Spread the cut sides of the ciabatta with the green pesto. Layer the steak strips, grilled vegetables, and mozzarella mixture onto the bread.
Finish and Serve
Place the other half of the ciabatta on top, press down lightly, and cut into 4 pieces.
Notes
Steak Quality
Choose a higher-welfare sirloin steak for better flavor and ethical considerations.
Vegetable Options
Feel free to substitute or add other vegetables according to preference or seasonal availability.
Pesto Variation
Experiment with different types of pesto if desired, such as sun-dried tomato or vegan options.
Serving Suggestions
This dish can be served with a side salad or crispy fries for a complete meal.

Cook Techniques
Grilling
Grilling involves cooking food over direct heat, typically on a barbecue. This method allows for a smoky flavor and a nice char on the ingredients, enhancing their taste.
Brushing
Brushing is used to apply oil or marinade to food and surfaces to prevent sticking and enhance flavor. A herb brush can be created using fresh herbs tied to a wooden spoon to add extra aroma during grilling.
Seasoning
Seasoning involves adding salt, pepper, or other spices to enhance the flavor of ingredients before cooking. It’s essential for creating a delicious and balanced dish.
Layering
Layering refers to the arrangement of different components of a dish, such as placing grilled vegetables and steak on ciabatta bread. This technique ensures a well-balanced bite and an appealing presentation.
Tossing
Tossing is the act of mixing ingredients together gently to ensure they are evenly coated with oil or dressing. This technique helps to combine flavors and textures in a dish.
FAQ
What type of heat should I use for grilling?
You should aim for direct cooking over high heat, ideally around 290°C, to achieve proper grilling results.
How can I tell when the vegetables are done?
The vegetables should be soft and caramelized, usually after about 10 minutes on the grill, but you should turn them frequently for even cooking.
How thick should I slice the steak?
Slice the steak into 1cm-thick strips to ensure they cook evenly and remain tender.
What is the purpose of brushing the grill grates?
Brushing the grill grates with oil prevents sticking and helps to infuse the grill with herbal flavors, enhancing the overall taste of the grilled food.
How do I serve the dish after assembling?
After layering the ingredients on ciabatta, press down lightly, then cut into four pieces for easy serving.
Conclusion
This delicious sandwich showcases the vibrant flavors of grilled vegetables, succulent sirloin steak, and creamy buffalo mozzarella, all elevated by the aromatic touch of fresh basil and rosemary. The ciabatta loaf, enhanced with pesto, makes for a perfect vessel to encapsulate these ingredients, creating a satisfying meal that is perfect for any outdoor gathering.
More recipes suggestions and combination
Vegetable and Hummus Wrap
Use a lavash wrap, spread hummus on it, and add roasted or grilled vegetables like zucchini, capsicums, and red onions. Top with arugula and a drizzle of balsamic.
Steak Salad with Pesto Dressing
Grill steak strips and serve them over mixed greens with cherry tomatoes, cucumbers, and a generous serving of homemade green pesto dressing.
Caprese Stuffed Bell Peppers
Fill halved red bell peppers with layers of sliced buffalo mozzarella, fresh basil, and tomatoes, drizzled with balsamic glaze, and bake until the peppers are tender.
Zucchini Noodles with Steak and Pesto
Spiralize zucchinis and toss with grilled sirloin steak strips, green pesto, and cherry tomatoes for a light and refreshing meal.
Pesto and Mozzarella Flatbread
Spread flatbreads with green pesto, top with sliced mozzarella and grilled vegetables, then bake until crispy for a tasty appetizer or snack.
