Combine the filling: In a large bowl add chopped chicken, romaine, Parmesan, croutons, bacon if using, and Caesar dressing.
Chop: Using a pizza cutter, repeatedly chop through the mixture until finely cut and evenly combined.
Add chips: Add potato chips and lightly chop and press into the mixture until slightly broken down but still crunchy.
Warm tortilla: Warm tortilla in a dry pan or microwave until soft and pliable.
Roll: Spoon filling into the center of the tortilla keeping it compact. Fold in the sides and roll tightly from the bottom up.
Serve: Slice in half and serve immediately.