Here's my guide to different steaks and things you need to know when cooking each cut, from filet mignon and T-bone to New ...
Flap steak comes from the cow's bottom sirloin, and while it's not quite as flavorful as fine cuts, it's still worth cooking.
You might be looking at a sirloin and ribeye steak on a menu and know somehow that you are supposed to want the ribeye, but ...
Bottom sirloin is chewier and leaner and can appear as tri-tip, flap steak or under the general label of "sirloin steak." Food & Wine gives you dozens of sirloin recipes from all over the world.