Ingredients
3 tablespoons white-wine vinegar
1 tablespoon olive oil
Coarse salt and ground pepper
1 pound green beans, trimmed and cut diagonally into 1-inch pieces
1 can (15.5 ounces) cannellini beans, drained and rinsed
1/2 cup minced red onion
Shaved Parmesan cheese, for serving (optional)
Preparation
In a large bowl, whisk together vinegar and oil; season with salt and pepper. Set aside.
Cook green beans in a pot of boiling salted water until crisp-tender, about 4 minutes. Drain in a colander; pat dry with paper towels.
Add warm green beans, cannellini, and red onion to dressing in bowl; season with salt and pepper. Toss well. Serve, garnished with Parmesan, if desired.