Green bean, artichoke and white bean with red wine vinaigrette

I just made this salad the other day and it's definitely worth blogging about!
Ingredients;
1 cup fresh green beans, trimmed and cut into pieces.
1 8oz  package frozen artichoke heart quarters
1 cup of cooked white beans
1 large tomato, diced
1/4 cup chopped parsley
2 scallions, sliced
2 tbsp red wine vinegar
2 tbsp extra virgin olive oil
1 1/2 tsp Dijon mustard
1/2 tsp salt
1/2 tsp dried basil
1/4 tsp freshly ground black pepper
1/4 tsp garlic powder
1/4 tsp dried oregano
1. Fill a medium saucepan halfway with water and bring to a boil over high heat. Add a pinch of salt and green beans. Boil for 4 minutes.
2. Add artichokes and continue to boil for 5 minutes until vegetables are tender. Drain and add vegetables to a bowl of ice water to cool quickly. Drain again.
3. Add vegetables and remaining ingredients to a medium mixing bowl and mix well.
4. Chill for at least 2 hours and up to 4 days.