01 -
Preheat the oven to 425°F and prepare a baking sheet by spraying it with nonstick oil.
02 -
Spread the trimmed green beans in a single even layer on the prepared baking sheet, spacing them to avoid crowding.
03 -
In a small bowl, whisk together olive oil, Parmesan cheese, minced garlic, kosher salt, and ground black pepper until combined.
04 -
Drizzle the garlic Parmesan oil evenly over the green beans and toss gently to ensure every bean is well coated.
05 -
Place the baking sheet in the oven and roast the green beans for 20 minutes, until tender with slight crispness and light browning on edges.
06 -
Remove the beans from the oven and evenly sprinkle shredded mozzarella over the top, spreading to cover as much surface as possible.
07 -
Switch the oven setting to broil and move the baking sheet to the top rack. Broil until the cheese is bubbly and golden, about 4 to 5 minutes. Monitor closely to prevent burning.
08 -
Transfer to a serving dish and enjoy immediately while the cheese is melted and strings with every bite.