Start by prepping the Fire-Roasted Tomato Salsa. Preheat your grill to medium, about 350°F.
Grill the onions and tomatoes until they are tender and lightly charred. Transfer them to a cutting board and let them cool for a little while before coarsely chopping.
In a bowl, combine the copped onion and tomato with the garlic, Bone Dust, oil, herbs, tomato sauce, and olives. Mix it well and set aside while you make the rest of your meal. At least 30 minutes, so that the flavours meld.
Season the turkey fillets with Mediterranean-style rub, gently pressing the rub into the meat. Grill the seasoned turkey for 2 to 4 minutes per side, basting with your favourite barbecue sauce until it’s crisp and fully cooked. Remove from the grill and set aside.
Now to assemble the sandwich. Cut the top of the loaf off. Scoop out two-thirds of the inside from the bottom half of the loaf. Brush the insides with oil and season with salt and pepper to taste. Line with the turkey cutlets, mozzarella cheese and finally the salsa. Replace the top half of the loaf and slice the whole loaf into 4 sections. Serve immediately.