This roasted lemon-rosemary chicken and cauliflower is an easy sheet pan dinner with crispy, golden chicken thighs and caramelized cauliflower florets, all infused with bright lemon, garlic, and fresh rosemary. Everything roasts together on one pan, so cleanup is a breeze and dinner is on the table in about 45 minutes. It’s a healthy, flavorful weeknight meal the whole family will love.