Preheat your oven to 425°F.
Pat the chicken breast dry with paper towels. In a small bowl, mix the juice of half the lemon, minced garlic, chopped thyme, chopped rosemary, salt, and pepper.
Marinate the chicken breast in the herb and lemon mixture for at least 15 minutes.
Meanwhile, trim the ends of your green beans. Toss them in olive oil, a bit of salt, and pepper. Arrange on a baking sheet.
Place the marinated chicken breast on another baking sheet lined with parchment paper.
Roast the green beans in the oven for about 15 minutes, stirring halfway through, until tender and lightly crispy.
Bake the chicken for 20-25 minutes, or until the internal temperature reaches 165°F. For extra crispiness, broil for an additional 2-3 minutes at the end.
Plate the chicken with the roasted green beans and garnish with a squeeze of fresh lemon juice or lemon zest from the remaining lemon half.
Serve immediately and enjoy a meal that’s both zesty and satisfying.