Here’s a tip I found on the internet somewhere: you can cook an onion in the microwave in 5 min. No special preparation, though I recommend removing the end bits and the outer papery peel. You can microwave it for less if you want more of a crunch. You can cut it up afterwards, and it goes well with ketchup or with soy sauce. It doesn’t really go well with ranch, oddly enough.
Excellent for Onion Beef, which I may upload some other time.