Preheat oven to 400℉. Spray your baking sheet with oil, and set aside.
Rinse asparagus, and drain using a colander. Pat them dry using a paper towel.
Break or cut the tough ends off the asparagus.
Drizzle with olive oil, and toss to coat.
Sprinkle with sea salt and minced garlic.
Arrange in a single layer on the baking sheet.
Roast for 15-20 minutes, depending on the size of your asparagus, until tender.
Remove the asparagus from the oven and place on a serving platter.
Squeeze the juice of half a lemon over the roasted asparagus, and serve immediately.