Here is a green bean recipe I learned this year from my oldest son.
Take one pound of green beans, put in a pot of water with steamer tray in it, and bring water to boil.
Turn down heat to low boil, cover and steam the beans 4 to 5 minutes until cooked but a bit crisp.
Heat olive oil and a few dashes of soy sauce in a large skillet, and cook some chopped garlic until it is golden.
Add the beans, cover, and cook a few minutes until done, and still a bit crisp.
You don't want the beans to be overcooked and mushy.
My family likes these beans as described here, and also with a dash of toasted sesame oil.