From cooks.com 

1-2 lb. Greens (bok choy, spinach, chard, etc)                   

1 TBSP unrefined olive oil 

½ cup pine nuts or sesame seeds                                                              

1 clove garlic, minced
1 small onion, diced                                          

2 TBSP apple cider vinegar
Sea salt, tamari or soy sauce to taste 

Wash and tear the greens, removing heavy stems. Heat a large skillet. Add oil and nuts and sauté until golden. Add all the other ingredients. Stir, cover and cook 2 minutes until the greens are barely tender.

Serves 4.