steak tacos

Photo: Ditte Isager

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Broccoli
Superfood Credentials: In addition to filling and gut-health-promoting fiber, it's an excellent source of vitamins C and B6, which helps your body break down and make use of the protein you eat.

How to Add It to Your Life: Precut broccoli slaw isn't just a timesaving ingredient when you need a quick side dish. Mitchell also loves the julienned veg for its ability to add volume to main courses—even, surprisingly, tacos. She'll stir two big handfuls into whatever protein she's cooking (such as ground turkey or beef), along with taco seasoning, and swears most eaters won't even notice it's there. It's an easy way to bulk up the tortilla filling, help make you feel full and get more vitamins into whatever you're cooking.

Get the recipe: Taco Fiesta