Step 1: Prepare the Bread

• Slice the ciabatta rolls or loaf horizontally into sandwich halves.
• Lightly toast the bread in a skillet, toaster, or oven at 375°F (190°C) for 3-5 minutes, just until the edges are slightly crisp. This step enhances the flavor and prevents sogginess when adding fillings.

Step 2: Prepare the Protein

• If using grilled chicken or turkey, season it lightly with salt, pepper, and a touch of olive oil before grilling.
• For roasted vegetables, toss sliced zucchini, bell peppers, and eggplant with olive oil, salt, and your favorite herbs. Roast them at 400°F (200°C) for about 15 minutes, flipping halfway through.

Step 3: Assemble the Sandwich

• Spread a generous layer of mayonnaise and Dijon mustard on the cut sides of the ciabatta bread. Add a dollop of pesto or sun-dried tomato spread for extra flavor.
• Layer the sandwich in the following order: lettuce or arugula, tomato slices, cooked protein (or roasted vegetables), red onion slices, avocado, and optional toppings like cheese or roasted red peppers.
• Close the sandwich with the top half of the ciabatta bread.

Step 4: Serve and Enjoy

• Slice the sandwich in half diagonally for easy handling.
• Serve immediately with your favorite side dishes, such as chips, a salad, or a cup of soup.