Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
2         cups          broccoli florets
2         cups          cauliflower florets
8         oz.           fresh green beans, cut into 2" pieces
2         cups          diagonally sliced carrots
1         cup           cherry tomatoes, halved
1/2       cup           chopped red onion
1/3       cup           Grey Poupon 
                        Country Dijon mustard
1/3       cup           olive oil
1/4       cup           vinegar
1         tsp.          sugar
1         tsp.          dried oregano
1/4       tsp.          Pepper

Preparation:

In large heavy pot, steam broccoli, cauliflower, green beans and carrots until tender-crisp. Rinse vegetables in cold water and drain well; place in large serving bowl. Stir in cherry tomatoes and onion. In small bowl, whisk mustard, oil, vinegar, sugar, oregano and pepper. Pour dressing over vegetables, tossing to coat well. Chill for at least 2 hours before serving, stirring occasionally.