Preheat your oven to 400°F (200°C) and line a baking sheet with parchment or a silicone baking mat.
Place walnuts in a food processor and pulse until finely chopped but not powdered, about 10-12 pulses.
4 pieces boneless, skinless chicken breasts
Transfer chopped walnuts to a shallow bowl and mix in panko breadcrumbs and a pinch of salt and pepper for flavor.
4 pieces boneless, skinless chicken breasts
Brush the chicken breasts lightly with 1 tablespoon of olive oil to help the crust stick.
4 pieces boneless, skinless chicken breasts
Dredge each chicken breast thoroughly in the walnut mixture, pressing gently to adhere the crust evenly all over.
4 pieces boneless, skinless chicken breasts
Arrange the coated chicken breasts on the prepared baking sheet and bake for about 20-25 minutes, or until golden brown and cooked through (internal temperature of 165°F).
4 pieces boneless, skinless chicken breasts
While the chicken bakes, prepare the fennel slaw by placing shredded fennel in a bowl. Add lemon juice, honey, vinegar, and the remaining tablespoon of olive oil.
4 pieces boneless, skinless chicken breasts
Toss the fennel with the dressing until evenly coated, and set aside to let it soften slightly.
4 pieces boneless, skinless chicken breasts
Once the chicken is cooked and crispy, remove from the oven and let it rest for a few minutes to settle the juices.
4 pieces boneless, skinless chicken breasts
Slice the chicken if desired, and plate it alongside a generous heap of fennel slaw for a vibrant contrast in flavors and textures.
4 pieces boneless, skinless chicken breasts
Enjoy your walnut-crusted chicken with the crisp fennel slaw for a balanced and satisfying meal.