How to Make It
Bring a large pot of salted water to a boil. Add the green beans and yellow wax beans and cook until just tender, about 4 minutes. Drain, pat dry and let cool. Cut the beans into 2-inch lengths.
In a large bowl, combine the olive oil, balsamic vinegar, basil, garlic and crushed red pepper. Fold in the cannellini beans and green and yellow beans. Season with salt and pepper, toss well and serve.