Preheat your oven to 425°F. Peel and cut the sweet potato into fries. Toss them with 1 teaspoon of olive oil, a pinch of salt and black pepper, and spread evenly on a baking sheet.
Bake the sweet potato fries in the preheated oven for 20-25 minutes, flipping halfway through, until crispy and golden.
While the fries are baking, finely mince 2 garlic cloves and mix with lemon juice, a pinch of salt, and the remaining 1 teaspoon of olive oil in a small bowl.
Season the chicken breast with salt and pepper on both sides. Heat a non-stick skillet over medium-high heat and add the chicken.
Pan-sear the chicken for about 5-6 minutes on each side, or until fully cooked. During the last minute of cooking, drizzle the lemon-garlic mixture over the chicken to infuse it with flavor.
Meanwhile, steam or sauté the green beans until tender-crisp, about 4-5 minutes. Season lightly with salt and pepper.
Plate the pan-seared chicken alongside the crispy baked sweet potato fries and fresh green beans. Serve immediately.