Preheat Oven: Start by setting your oven to 400°F (200°C). Grab a large baking tray and line it with parchment paper for easier cleanup.
Prep Green Beans: Clean the green beans by washing them under cold water. Snap off the ends and place them in a mixing bowl.
Seasoning: In the same bowl, drizzle olive oil over the green beans. Add the minced garlic, lemon zest, lemon juice, salt, and black pepper. Toss everything together until the green beans are evenly coated with the mixture.
Roasting: Spread the green beans on the prepared baking tray in a single layer. Make sure they aren’t overcrowded to ensure even roasting.
Cook: Place the tray in the preheated oven and roast the green beans for about 15 minutes. Halfway through, give them a gentle stir to ensure they roast evenly.
Check for Doneness: After 15 minutes, the green beans should be tender and slightly crisp. If you prefer them softer, you can let them roast for an additional 3-5 minutes.