01 -
Set the oven to 425°F (220°C). Spray a baking sheet evenly with nonstick oil to prevent sticking.
02 -
Spread the trimmed green beans in a single, even layer on the prepared baking sheet, ensuring they have space for even roasting.
03 -
In a small bowl, combine olive oil, Parmesan cheese, chopped garlic, kosher salt, and black pepper. Stir thoroughly to integrate the ingredients.
04 -
Drizzle the garlic oil mixture over the green beans. Toss well using gloves or a spatula to ensure each bean is evenly coated.
05 -
Place the baking sheet in the oven and roast the beans for 20 minutes until they are bright green and tender with a slight crispness.
06 -
Remove the baking sheet and evenly sprinkle shredded mozzarella cheese over the roasted green beans.
07 -
Switch the oven to broil. Position the baking sheet on the top rack and broil for 4 to 5 minutes, watching closely until the cheese is golden and bubbly.
08 -
Transfer the cheesy garlic green beans to a serving dish and enjoy while warm and gooey.