01 - Whisk together olive oil, minced garlic, Italian herbs, parsley, salt, pepper, and lemon juice in a large bowl. Add chicken breasts and turn to coat evenly. Cover and refrigerate for at least 20 minutes to absorb flavors.
02 - Place cubed potatoes in a pot with cold salted water. Bring to a boil and cook 15 to 20 minutes until fork tender. Drain thoroughly and return to the pot. Mash in butter, milk, salt, and white pepper until smooth and creamy. Cover to keep warm.
03 - While potatoes boil, place carrots in a saucepan with enough water to cover. Simmer 8 to 10 minutes until barely tender. Drain water. Add butter and honey to the pan, return carrots, and stir over medium heat 3 to 5 minutes until glazed and shiny. Season with salt and pepper, then sprinkle with parsley.
04 - Heat a large skillet over medium high heat. Remove chicken from marinade, letting excess drip off. Cook 6 to 7 minutes per side until golden brown and cooked through, reaching an internal temperature of 165°F. Transfer to a plate and let rest 5 minutes before serving.
05 - Arrange sliced chicken breast alongside a generous portion of creamy mashed potatoes and glazed carrots. Garnish with additional fresh parsley if desired. Serve immediately while hot.