Preheat oven to 450 degrees. Pound Chicken to uniform thickness and cut each breast into two even pieces. Sprinkle liberally with thyme, salt and pepper on each side.
Whisk egg whites briskly in small bowl until frothy, about 30 seconds.
Combine Parmesan and Panko in small bowl.
Set large oven proof saute pan (I used my big cast iron skillet) on medium high heat with olive oil.
Dip chicken in egg whites then dredge in Parmesan-bread crumb mixture until well coated. Once pan is hot, add butter. After butter is melted and beginning to brown, add chicken pieces.
Cook for about 5 minutes until chicken is browned on the bottom. Turn chicken over, and put pan in preheated oven. Cook until instant read thermometer reads 180 degrees, or cut chicken piece in half to check for done-ness, about 15 minutes.
Salad
Mound arugula on serving plate and tear handfuls of it until it is in uniform, smaller pieces. Drizzle olive oil, honey, and vinegar on top, and season lightly with salt and pepper. Toss. Spread across platter.
Place chicken on top of salad, and place cut lemon chunks on platter to be squeezed on top of chicken when presented.