I cannot stand the taste of boiled beef fat. I don't like it fried, roasted, or bbq'd. Aside from the taste of boiled beef fat, I can't stand the texture of the fat in my mouth. The same with fried, onions, like onion rings or grilled onions as you might get on beef liver. This greatly limits my food choices when it comes to roast beef or stews. I make chili, clam chowder, chicken and rice, or plain chicken soup, or soup of any other kind except something with beef in it. I don't like corned beef and cabbage either, but I love a good lean pastrami sandwich. If I add onions to my soups, I use chopped or diced onions. Something small enough i don't have to have it slime around in my mouth. A raw sliced onion on a burger is okay.