Testing, testing: Beef Burger with Spinach, Roasted Poblanos, and Caramelized Onions

Update: This burger made Editors’ Pick at Food52! This will be my last post before the blog officially launches on Sunday (August 1st) and I tell my mom about it.  I wouldn’t be posting at all, because I’m working on writing next week’s posts, but something fun is going on, and you may be able […]