1 1/2 pounds fresh green beans (I really like fresh French green beans for this), trimmed
2 tablespoons unsalted butter
1 tablespoon olive oil
3 large shallots, thinly sliced
2 garlic cloves, minced
1 (14 1/2-ounce) can diced tomatoes
1/4 cup dry white wine
2 tablespoons thinly sliced fresh basil
Salt and freshly ground black pepper
Cook the green beans in a large pot of boiling water until just crisp-tender, about 3 minutes. Drain and rinse in cold water. Drain well; set aside.
Melt the butter and oil in a heavy, large skillet over medium heat. Add the shallots and garlic and sauté until tender, about 2 minutes. Add the tomatoes and cook until heated through, about 3 minutes. Add the beans and cook until the juices evaporate and the beans are almost tender, stirring often, about 10 minutes. Stir in the wine and basil. Simmer 2 minutes longer. Season with salt and pepper, to taste. Transfer to a serving bowl, and serve.