Beans Tomato Onion Stir Fry

This is a simple recipe but packs a lot of flavor.The only spices used are salt and pepper but it helps the vegetables to truly shine.Recipe credit is to my Mom-in-law who first made it for me a few years back.I
completely fell in love with this recipe for its simplicity and taste.

Ingredients:
green beans cut diagonally 100 gms
tomatos cut in thin strips 100 gms
onions thinly sliced 100 gms
water 1/4 cup
oil 1tsp
salt to taste
freshly cracked black pepper to taste (I usually put in 1 tsp)

Method:
1.Take a wok and add the oil and heat the oil.Add the green beans and saute lightly.Sprinkle a little water on to the pan and cover and cook the beans for 1 minute.Uncover,again spray a little water and cook.Continue till the beans are half cooked.
2.Add the onions.Saute gently till translucent.
3.Add the tomatos.Saute for 1 minute.Then sprinkle some water and cover and cook for 1 minute.Continue till the vegetables are cooked but not mushy.
4.Sprinkle salt and pepper.Serve.