A combi oven combines the best of both worlds: a microwave and an oven. That's because it's an oven with a microwave function. This way, you only need 1 appliance to prepare meals in an oven or microwave. With the oven function, you can prepare delicious lasagnas, cakes, or even pizzas. The microwave function is suitable for heating up leftovers or ready meals. There are built-in combi ovens, but there also are freestanding models. You can easily build a built-in model into one of your cabinets, which is useful if you don't have a lot of space.