Preparation Steam cauliflower until just crisp-tender, about 6 minutes. Rinse with cold water; drain well. Steam broccoli until just crisp-tender, about 4 minutes. Rinse with cold water; drain well. Steam carrots until just crisp-tender, about 4 minutes. Rinse with cold water; drain. Mix cauliflower, broccoli, carrots and olives in large bowl. (Can be prepared 1 day ahead. Cover vegetables and chill.) Place lemon juice in small bowl. Gradually mix in oil. Add tomatoes, oregano and dried red pepper. Pour dressing over vegetables and stir to coat. Season to taste with salt and pepper. Garnish with lemon wedges. (Can be prepared 2 hours ahead. Let stand at room temperature, tossing occasionally.)
Preparation Steam cauliflower until just crisp-tender, about 6 minutes. Rinse with cold water; drain well. Steam broccoli until just crisp-tender, about 4 minutes. Rinse with cold water; drain well. Steam carrots until just crisp-tender, about 4 minutes. Rinse with cold water; drain. Mix cauliflower, broccoli, carrots and olives in large bowl. (Can be prepared 1 day ahead. Cover vegetables and chill.) Place lemon juice in small bowl. Gradually mix in oil. Add tomatoes, oregano and dried red pepper. Pour dressing over vegetables and stir to coat. Season to taste with salt and pepper. Garnish with lemon wedges. (Can be prepared 2 hours ahead. Let stand at room temperature, tossing occasionally.)