How do you keep the chicken from drying out?
Cook boneless, skinless chicken breasts over medium-high heat for 6-7 minutes per side until golden and cooked through (165°F internal). Don't overcrowd the pan, and avoid pressing down on the chicken while cooking.
Can you make this sandwich ahead?
Assemble the sandwich right before serving to keep the sub roll from becoming soggy. Cook the chicken and bacon in advance and reheat gently before assembling.
What cheese works best for this sub?
Provolone, American, or mozzarella are ideal because they melt easily and complement the ranch flavor without overpowering the chicken.
Can you use rotisserie chicken instead?
Yes. Shred or slice rotisserie chicken and warm it in the pan for 2-3 minutes with the seasonings before assembling.
How do you get the garlic butter Parmesan topping crispy?
Toast the sub rolls cut-side up under the broiler or in a skillet for 1-2 minutes, then brush with garlic butter and sprinkle Parmesan before the final toast.