01 - In a small bowl, whisk together 2 tbsp olive oil, lemon juice, minced garlic, dried oregano, salt, and black pepper until well combined.
02 - Place the chicken breasts in a shallow dish or resealable plastic bag. Pour the marinade over the chicken, turning each breast to coat evenly. Marinate for at least 15 minutes, or up to 2 hours refrigerated for deeper flavor penetration.
03 - Preheat an outdoor grill or grill pan to medium-high heat, approximately 400°F. Ensure the grates are clean and lightly oiled to prevent sticking.
04 - Toss the trimmed asparagus with a light drizzle of olive oil, salt, and pepper. Arrange in a single layer for even grilling.
05 - Place the marinated chicken breasts onto the hot grill. Cook for 5 to 6 minutes per side until golden grill marks form and the internal temperature reaches 165°F. Transfer to a plate and rest for 5 minutes before slicing.
06 - Place the seasoned asparagus directly on the grill. Cook for 2 to 3 minutes, turning occasionally with tongs, until slightly charred and tender-crisp. Remove from the grill and set aside.
07 - While the chicken rests, combine Calabrian chili paste, 2 tbsp olive oil, white wine vinegar, honey, minced shallot, chopped parsley, lemon zest, and a pinch of salt in a small bowl. Stir thoroughly and adjust seasoning to taste.
08 - Arrange the rested chicken breasts alongside the charred asparagus on serving plates. Drizzle generously with the Calabrian chili sauce and serve immediately.