Recipe courtesy EatingWell.com
The hard part of making this elegant dish is choosing the filling. The basic recipes are below, but you can add your own variations. We went for an Onion & Chive cream cheese stuffing and added panko breadcrumbs for a nice crunchy crust. Making a pocket in the chicken breast to hold the stuffing is easy, particularly if you use a good, sharp, thin-bladed knife. Browning the chicken in a skillet before baking gives it a beautiful golden color. Finishing it in the oven ensures that it cooks evenly throughout. Make sure to use a temp probe so the chicken doesn't end up dried out.
Filling of your choice (see below)
Combine cream cheese, pesto and pepper in a small bowl with a fork.
Cut a horizontal slit along the thin, long edge of a chicken breast half, nearly through to the opposite side. Open up each breast and place one-fourth of the filling in the center. Close the breast over the filling, pressing the edges firmly together to seal. Repeat with the remaining chicken breasts and filling.
Lightly beat egg white with a fork in a medium bowl. Place breadcrumbs in a shallow glass dish. Hold each chicken breast half together and dip in the egg white, then dredge in the breadcrumbs. (Discard leftovers.)
Heat oil in a large nonstick skillet over medium-high heat. Add chicken breasts; cook until browned on one side, about 2 minutes. Place the chicken, browned-side up, on the prepared baking sheet. Bake until the chicken is no longer pink in the center or until an instant-read thermometer registers 170°F, about 20 minutes.