Preheat the oven to 400
degrees F.
In a large bowl, combine the asparagus, tomatoes and garlic. Drizzle with
the olive oil and season with the kosher salt and pepper. Toss to coat, then
transfer to a large baking sheet with sides. Drizzle the lemon juice over
the asparagus, add the lemon halves to the pan, and place in the oven. Roast
until the asparagus are tender and the tomatoes begin to caramelize, about
20 to 25 minutes. Remove from the oven and serve hot or at room temperature.