Heat the olive oil in a large skillet over medium heat.
Add the broccoli, garlic, salt, and several grinds of pepper and sauté for 3 to 4 minutes.
Add 2 tablespoons water, cover, and cook until the broccoli is tender, 2 to 4 more minutes.
Turn off the heat.
Squeeze with lemon juice and sprinkle with red pepper flakes, if using.
Season to taste with more salt and pepper.
