Preheat your oven to 425°F.
Dice the medium potato into 1-inch cubes and toss with 1/2 tablespoon olive oil, minced garlic from one clove, salt, and pepper.
Spread the diced potatoes on a baking sheet and roast in the oven for 25-30 minutes until golden and crispy, stirring halfway through.
Meanwhile, season the 5 oz chicken breast with salt, pepper, chopped rosemary, thyme leaves, the juice of the lemon, and the remaining minced garlic.
Heat a skillet over medium-high heat with a drizzle of olive oil. Sear the chicken breast for 2-3 minutes per side until browned, then transfer it to the oven to finish cooking, about 8-10 minutes, until the internal temperature reaches 165°F.
Trim the ends of the asparagus and toss them with a little olive oil, salt, and pepper. Spread them on a separate baking tray and roast in the oven for 10-12 minutes until tender.
Plate the roasted potatoes, chicken breast sliced against the grain, and the roasted asparagus. Garnish with additional lemon wedges and fresh herbs if desired, and enjoy your balanced meal.