In a medium bowl, combine ½ cup full-fat mayonnaise, ¼ cup Greek yogurt, 2 tablespoons Dijon mustard, 2 teaspoons Worcestershire sauce, the juice of 1 lemon, ¼ cup grated Parmesan cheese, 2 minced garlic cloves, and a pinch of sea salt and black pepper. Whisk until the mixture is smooth and creamy. Reserve a few tablespoons of this delectable dressing for later assembly.

Chop fresh romaine hearts into bite-sized pieces and combine them in a large bowl with ½ cup of the prepared Caesar dressing. Toss well to coat each leaf evenly, ensuring a burst of flavor in every bite. Cover the bowl and refrigerate for about 15 minutes to allow the flavors to meld and the lettuce to chill.

Using a meat mallet or rolling pin, pound the chicken cutlets to an even thickness of about ½ inch. Season both sides generously with sea salt and black pepper for extra flavor; this step is essential for your Crispy Chicken Caesar Sandwich.

Create a three-step breading station on a clean countertop. In one shallow dish, combine 1 cup of all-purpose flour with a pinch of salt and smoked paprika. In the second dish, beat 2 eggs with a sprinkle of salt. Place 1 cup each of panko and regular breadcrumbs mixed with dried parsley, oregano, and garlic powder in the third dish.

Coat each chicken cutlet in the flour mixture, then dip it into the beaten egg, ensuring even coverage. Finally, press it into the breadcrumb mixture, coating well. Meanwhile, heat about ½ inch of oil in a frying pan over medium-high heat (around 350°F/175°C). You’ll know it’s ready when a breadcrumb sizzles on contact.

Carefully place the breaded cutlets into the hot oil, frying for about 4-5 minutes on each side until golden brown and crispy. Use tongs to turn them carefully, avoiding any splashes. Once fully cooked, remove the cutlets and place them on a wire rack to drain excess oil, keeping them crispy.

Slice the French baguette open lengthwise and spread a generous amount of the reserved Caesar dressing on both sides. Place one crispy chicken cutlet inside the baguette, followed by a heaping portion of the dressed romaine. Garnish with extra grated Parmesan cheese, then close the sandwich and cut it into manageable portions.

Enjoy your Crispy Chicken Caesar Sandwich while it's still warm and crispy! You can serve it alongside fries or a light salad for a complete meal experience. Remember, for the best texture, assemble the sandwich right before serving to maintain that delightful crunch.