Make the garlic butter: In a small bowl, mix softened butter, minced garlic, and parsley. Season with a pinch of salt.
Prep the rolls: Split the sub rolls lengthwise without cutting all the way through. Spread the garlic butter on the cut sides.
Toast: Place rolls, cut side up, under the broiler for 2–4 minutes until lightly golden.
Keep an eye on them so they don’t burn.
Warm the chicken: In a skillet over medium heat, add the chicken and a splash of water or broth. Warm just until heated through. Season with a pinch of salt and black pepper.
Cheese melt: Divide the warm chicken among the toasted rolls.
Top with mozzarella or provolone. Return to the broiler for 1–2 minutes until the cheese melts and edges bubble.
Toss the salad: In a bowl, combine romaine, Caesar dressing, lemon juice, and Parmesan. Toss until lightly coated.
Add more dressing if you like it saucy.
Assemble: Spoon the Caesar salad over the cheesy chicken. Sprinkle bacon or extras if using. Close the subs gently.
Serve: Enjoy immediately while the bread is crisp and the cheese is melty.
Add an extra drizzle of dressing if you’re feeling it.