In a large bowl, toss broccoli florets with the olive oil, sea salt, pepper and garlic.
Spread the broccoli out in an even layer on a baking sheet.
Bake in the preheated oven until florets are tender enough to pierce the stems with a fork, 15-20 minutes. Remove and transfer to a serving platter. Squeeze. lemon juice liberally over the broccoli before serving for a refreshing, tangy finish.