Katrina began her editing and writing career in newspapers, transitioned to magazines, and has been involved in digital media since 1995. 

She has been an editor and writer at The Dallas Morning News and The New York Times Magazine, a senior editor at Vanity Fair and The New Yorker, editor-in-chief of Wired magazine, and editor-at-large for Dwell and Newsweek/The Daily Beast. Over the years, she has worked closely as an editor with a number of amazing writers. A few personal favorites: Peter J. Boyer, Marie Brenner, Harold Brodkey, John Heilemann, Norman Mailer, Maureen Orth, Evan Ratliff and Lawrence Wright. 

Independent projects have included co-authoring two books, serving as a technology consultant to The New York Times, teaching at U.C. Berkeley Graduate School of Journalism, and writing for Vogue, The New York Times, Dwell, GQ and Newsweek. She was among the advisers to the software and epublishing startup Atavist. 

For 10 years, she was a board director of The Chez Panisse Foundation, established by chef and food activist Alice Waters, working to promote edible education for children and reform of the National School Lunch program. In 2008, she was board chair of Slow Food Nation (a national food and agriculture conference held in San Francisco). She is a co-founder of the food politics blog civileats.com and the nonprofit journalism startup the Food and Environment Reporting Network. 

At Newsweek/Daily Beast, she helped develop the company's imprint, Beast Books, producing and editing its most successful book, "Mighty Be Our Powers," a memoir (with Carol Mithers) by Liberian activist Leymah Gbowee, who received the 2011 Nobel Peace Prize. 

In 2012, she became Executive Director of Waters’ nonprofit, renamed the Edible Schoolyard Project. She has overseen the rapid expansion of the organization’s mission to support Edible Education programs across the country and around the world, reflected in the shared resources and 5,300 member programs of the Edible Schoolyard Network.