Mama'S Green Beans - cooking recipe

Ingredients

1 lb green beans
Dressing
1/2 teaspoon salt
1 teaspoon mustard
1 tablespoon vinegar
3 tablespoons olive oil

Preparation

Put water and about about 1 tsp. of salt to boil.
After it boils, add green beans, then turn it on medium-low for 7 mins.
While cooking, mix together dressing.
Drain and rise with cold water to keep color.
Pour dressing over beans, toss and serve.