On large plate, combine 1 tablespoon flour, salt, and pepper. Set aside.
In a small bowl, combine cheese, lemon juice, and oregano. Set aside.
With a meat mallet, pound each chicken breast to 1/2 inch thickness. Spread cheese mixture on each chicken breast, leaving 1/2 inch border. Fold chicken breasts in half; secure each with toothpick. Coat chicken breasts with flour mixture.
With a meat mallet, pound each chicken breast to 1/2 inch thickness. Spread cheese mixture on each chicken breast, leaving 1/2 inch border. Fold chicken breasts in half; secure each with toothpick. Coat chicken breasts with flour mixture.