If you've never tried mustard greens, large box subscribers may have found their new best friend. Popular in Chinese, Japanese and Indian cooking, mustard greens have only rarely found themselves in US restaurants until recently. Related to kale, cabbage and collard greens, they are packed with nutritional value. See link here: http://www.whfoods.com/genpage.php?tname=foodspice&dbid=93
The leafy green originated in the Himalayas and has been consumed for 5,000 years, just not much in the U.S. until recently. Part of the recent interest in mustard greens is the cholesterol lowering ability and cardiovascular support of the raw or cooked leafy green. The link above goes into a great deal more detail of how that works for those that are interested.
Rinse leaves under cold running water and cut into chunks for quick and even cooking. Let them sit out of your refrigerator for 5 minutes before cooking, which helps activate healthy enzymes. Slice celery on the diagonal, and toss in the pan along with your greens.
In a medium saucepan, boil a quarter cup of water or broth and add mustard greens and sliced celery. Cover for 5 minutes or until tender. Toss with a tablespoon of olive oil or coconut oil, a crushed garlic clove, a splash of lime juice, sea salt, pepper and serve at once.