With a meat mallet (or back of a knife), pound the turkey breast to tenderize and even out thinly.
Have 3 shallow dishes ready.
In one dish, lightly beat 3 eggs.
To the second dish, add the all-purpose flour.
In the third dish, add the Panko breadcrumbs (or more as needed).
Lightly season each dish with salt and pepper and give each a mix.
Dredge the pounded turkey breast into the egg first.
Then, coat the turkey with flour.
Next, dredge the turkey back into the egg, and then coat evenly with Panko breadcrumbs.
Set aside.
Repeat with the remaining turkey breast cutlets.