1. Place pork between 2 sheets of plastic wrap; pound to an even thickness (about 1/4 inch) using a meat mallet or a small heavy skillet.
2. Place egg white in a shallow dish. Combine panko, cheese, salt, and pepper in a shallow dish. Dip pork in egg white; dredge in panko mixture, pressing gently with fingers to coat.
3. Heat oil in a large nonstick skillet over medium heat. Add pork; cook 3 to 4 minutes on each side or until lightly browned. Squeeze 1 lemon wedge over each pork chop; sprinkle each evenly with thyme.