Preheat the oven to 425°F (220°C).
Place the trimmed asparagus spears on a large baking sheet in a single layer.
In a small bowl, combine the minced garlic and olive oil.
Drizzle the garlic and olive oil mixture evenly over the asparagus.
Sprinkle the kosher salt and black pepper over the asparagus.
Use your hands or tongs to toss the asparagus gently, ensuring each spear is coated with the garlic oil and seasonings.
Spread the asparagus back out in a single layer on the baking sheet.
Roast in the preheated oven for 12 to 15 minutes, until the asparagus is tender and lightly browned at the tips.
Remove from the oven and sprinkle the freshly grated lemon zest over the asparagus.
Serve immediately as a flavorful side dish.