Ingredients
2 pounds green beans, trimmed
Coarse salt and ground pepper
1/3 cup olive oil
2 tablespoons white-wine vinegar
1 teaspoon Dijon mustard
2 cups quartered cherry tomatoes
1/2 cup sliced scallions
1/2 cup crumbled feta cheese
Preparation
Cook beans in a large pot of boiling salted water until crisp-tender, 6 to 8 minutes. Drain in a colander; run under cold water to stop cooking.
Whisk oil with vinegar and mustard; season with salt and pepper.
Toss beans with vinaigrette, tomatoes, scallions, and feta.