1) Greens with good nutrient contents, such as kale, spinach, asparagus, or the delicious butter lettuce (but not iceberg lettuce, yuck).
2) Sulfur-containing vegetables such as onion, broccoli and cabbage (the Proper recipe for cabbage is to slice it into thin strips and saute it in sesame oil - try it).
3) Variety is good. Eat bell peppers! And some carrots! Have you ever in your life tasted fennel? How many different colors of "green" beans to they sell at your local market?
The Proper recipe for dark green vegetables is to fry them at high heat and then add vinegar (ideally rice vinegar and fish sauce, as in pad see ew). Otherwise they are inedibly bitter.
This is a thread where people can ask questions that they would ordinarily feel embarrassed for not knowing the answer to. The previous "stupid" questions thread is at almost 500 questions in about a month, so I think it's time for a new one.
Also, I have a new "stupid" question.