Preheat oven to 450 degrees.
Toss broccoli, tomatoes, oil, garlic and salt in a large bowl until evenly coated. Spread in an even layer on a baking sheet. Bake until the broccoli begins to brown, 10 to 13 minutes. Meanwhile, combine lemon zest and juice, olives, oregano and capers (if using) in a large bowl. Add the roasted vegetables; stir to combine. Serve warm, or at room temperature. 4 servings.