A toaster oven is a small kitchen appliance that combines the functions of a toaster and an oven. It can toast bread, bake, broil, and reheat food, making it versatile for various cooking tasks. Typically, it has a heating element on the top and bottom, allowing for even cooking and browning. Toaster ovens come in different sizes and styles, often featuring adjustable temperature settings and timers. They are energy-efficient compared to traditional ovens, making them a popular choice for quick meals or snacks. Many models also include additional features like convection cooking, which circulates hot air for faster cooking.