You don't know how to cook ? Don't worry. I'm not professional cook,but there are some easy ways and also you get used to it.
Cut lengthwise first. ( I need only half of the length, so cut in half also.) hollow out the fluffy white cotton like part. That produces bitterness.
Stir Fried Goya :
Ingredients: Mentsuyu ( Soup or sauce for noodles) , Sliced goya, Grated sesame, Sesame oil
1) Put the pan over medium heat, pour some sesame oil
2) Add sliced goya into the pan.
3) After cooking goya for 5 minutes or so, add 1 to 2 table spoons of mentsuyu ( soba noodles soup) over goya.
4) Stop cooking and put into the dish. Sprinkle sesame on the top.