Preheat oven to 350°F. Mix roasted garlic, butter, parsley, parmesan, salt, and pepper.
Slice and hollow sub rolls. Spread garlic butter inside and top with parmesan. Bake 10–15 minutes until golden.
Set up breading station: flour, Caesar dressing mixed with water, and breadcrumbs.
Coat chicken in flour, dip in dressing mixture, then coat in breadcrumbs.
Heat avocado oil in a pan. Fry chicken until golden and crispy on both sides.
Transfer to paper towels to drain excess oil.
Toss chopped romaine with Caesar dressing, lemon juice, and parmesan.
Assemble the Crunchy Chicken Caesar Sandwich with toasted bread, crispy chicken, salad, and extra parmesan.