01 - Preheat an outdoor grill or grill pan to medium-high heat.
02 - Pat the chicken breasts dry with paper towels. Rub the chicken and asparagus evenly with olive oil, kosher salt, and black pepper.
03 - Place chicken breasts on the grill and cook for 6 to 7 minutes per side until the internal temperature reaches 165°F.
04 - Add asparagus to the grill during the last 4 to 5 minutes of the chicken's cooking time. Turn occasionally until crisp-tender with visible grill marks.
05 - In a small mixing bowl, combine the chopped Calabrian chili peppers with their oil, olive oil, minced garlic, lemon juice, honey, and chopped parsley. Season with salt and pepper to taste and stir until well blended.
06 - Remove the chicken from the grill and let it rest for 2 to 3 minutes. Slice if desired.
07 - Arrange the sliced chicken and grilled asparagus on plates. Drizzle generously with the Calabrian chili sauce and finish with lemon zest and additional parsley.