Stir-Fried Bok Choy

1 pound bok choy, chopped
2 tablespoons vegetable oil
1 medium onion, sliced
2 tablespoons ginger puree
2 cloves garlic, minced
1/4 teaspoon red pepper flakes
2 tablespoons lemon juice
1-1/2 teaspoons sugar
salt

1. Heat oil in a large skillet or wok over medium-high heat. Add onion, ginger, garlic and red pepper flakes, frying until lightly browned.
2. Add bok choy and fry for a minute or two to combine.
3. Season with salt, lemon juice and sugar and fry until crisp-tender.

Makes 4 servings