Remove the tough inner stems from the kale, then coarsely chop the leaves. Thinly slice the celery. Coarsely chop the walnuts. Combine 3 tsp pepper and garlic seasoning (see Kitchen notes) and 1 tbs olive oil in a large bowl and season with salt. Add the chicken and turn to coat.
Step 2 — Pan-fry chicken
Heat a medium frypan over medium-high heat. Cook the chicken for 5-6 mins each side until browned and cooked through. Remove from the pan.
Step 3 — Make dressing
Meanwhile, combine 2 tbs mayonnaise, 1 tsp dijon mustard, 1 tsp red wine vinegar and 1 tsp honey in a bowl and season with salt and pepper.
Step 4 — Massage kale
Cut the apple into thin matchsticks (see Kitchen notes). Put the kale and 1 tsp olive oil in a large bowl and season with salt. Using clean hands, massage the oil into the leaves until softened and darkened slightly. Add the apple, celery and dressing to the kale and toss to combine.
Step 5 — Serve up
Thinly slice the chicken. Divide the salad among bowls and top with the chicken. Scatter over the walnuts and enjoy!
Step 6 — Kitchen notes
Our pepper and garlic seasoning has a mild peppery kick, so reduce the amount if you prefer less heat. ~Here's an easy way to cut an apple into matchsticks: quarter the apple, remove the core, then thinly slice. Stack the slices and cut into matchsticks.