2 pounds
broccoli
2
small heads garlic
9 tablespoons
extra-virgin olive oil, divided
1 1/4 teaspoons
kosher salt
1/2 teaspoon
freshly ground black pepper
2
scallions, both white and green parts thinly sliced
1 bunch
flat-leaf parsley, roughly chopped
1
serrano pepper, seeded and thinly sliced
3 tablespoons
freshly squeezed lemon juice
3 teaspoons
lemon zest
1 handful
shaved Parmesan (optional, but recommended)