Preheat your oven to 375°F (190°C). Spread walnuts on a baking sheet and toast in the oven for about 8 minutes until fragrant and lightly golden. Once cooled, place walnuts in a food processor and pulse until finely chopped. Transfer to a shallow dish.
4 boneless, skinless chicken breasts
Pound chicken breasts to an even thickness of about 1 inch using a meat mallet or rolling pin. Season both sides with salt and pepper.
4 boneless, skinless chicken breasts
Brush each chicken breast lightly with olive oil, then press each piece into the toasted walnut crumbs, coating both sides evenly. Arrange the coated chicken on a baking sheet.
4 boneless, skinless chicken breasts
Bake the coated chicken in the preheated oven for about 15-20 minutes until the crust is golden and the chicken reaches an internal temperature of 165°F (74°C).
While the chicken bakes, prepare the fennel slaw: Combine thinly sliced fennel, shredded carrot, apple cider vinegar, honey, and mustard in a mixing bowl. Toss well to coat and season with salt and pepper to taste. Let it sit for 5 minutes to develop flavors.
4 boneless, skinless chicken breasts
Slice the baked chicken and arrange on serving plates. Spoon or pile the fennel slaw alongside or on top of the chicken for a fresh, crunchy contrast.
Serve immediately, enjoying the crunchy walnut crust paired with the crisp, tangy fennel slaw for a satisfying meal.