Just about any recipe instantly becomes tastier with caramelized onions. Caramelized onions add a subtle sweetness that pairs well with ingredients like beef and pasta. Whether you use them in a soup or a side dish, the onions create a depth of flavor. Recipes like Caramelized Onion & Goat Cheese Toast and Caramelized Onion & Apple Stuffing are healthy, flavorful and a great way to use this affordable vegetable.