Well, you technically can, but it’s not the most popular of greens at the moment. So try Swiss chard– or any other variety of chard for that matter. Swiss chard is a dark, leafy green with a reddish tint, and is slightly bitter in taste. Who knows, you may like it better than spinach!
Here are some recipes to get you started:
Swiss Chard with Tomato, Feta, and Pinenuts (Whole Foods)
Tuscan Bean and Swiss Chard Soup (Gourmet, January 2004)
Red Chard Risotto (Bon Appetit, February 1996)
Or you can just saute your chard with a bit of olive oil and garlic- yum!