Red onions are best suited for both raw and cooked applications such as grilling, roasting, braising, caramelizing, and pickling. The coarse-textured onions are heavily utilized as a sandwich onion and can be layered on burgers, wraps, gyros, and paninis.

Red onions can also be chopped and tossed into leafy green salads, minced into salsa or guacamole, or pickled in red wine vinegar and layered on tacos, pizza, and fried rice. In addition to fresh preparations, Red onions can be grilled for a smoky flavor.