Preheat your oven to 400°F.
In a small bowl, mix chopped rosemary, thyme, and minced garlic with a pinch of salt and pepper.
Pat the chicken breast dry, rub the herb mixture evenly over the chicken, and place it on a baking tray.
Roast the chicken in the oven for about 20-25 minutes or until cooked through and juices run clear.
Meanwhile, boil the peeled and diced potato in lightly salted water until tender, about 15 minutes.
Drain the potatoes and return them to the pot. Add butter, unsweetened almond milk, salt, and pepper, then mash until creamy.
For the green beans, blanch them in boiling water for 3-4 minutes until slightly tender, then drain.
Heat olive oil in a skillet over medium-high heat, add the green beans, and sauté for 3-4 minutes until crisp-tender.
Plate the roasted chicken alongside a serving of creamy mashed potatoes and crispy green beans, and serve warm.