FoFa says:
"This is extremely simple, with only 4 ingredients. But the crisp green beans covered in melted Parmesan is just divine."
1 pound green beans, trimmed
1-2 cups freshly shredded Parmesan cheese
Kosher salt
Freshly ground black pepper
Crushed red pepper flakes (optional)
1. Preheat oven to 400 degrees F.
2. Line sheet tray with parchment paper or foil and spread trimmed green beans on lining in an even layer, as close together as possible.
3. Cover green beans with Parmesan cheese, you can use less or more than the amount called for, just be sure to cover the green beans. Season with salt and black pepper, as well as crush red pepper flakes if using.
4. Bake in the oven for 15-20 minutes, until the cheese is melted and bubbly and when you test a green bean it is slightly softened.