3 tablespoons extra-virgin olive oil
1 cup finely chopped white onion
2 garlic cloves, minced
1 1/2 pounds green beans, trimmed
2 large plum tomatoes, finely chopped (about 1 cup)
1 cup (packed) fresh basil leaves
1/2 cup water
Heat oil in large nonstick skillet over medium heat. Add onion and garlic and sauté until onion softens slightly, about 5 minutes. Add green beans, tomatoes, basil leaves, and 1/2 cup water. Cook until beans are crisp-tender, stirring and tossing occasionally, about 10 minutes. Season to taste with salt and pepper. Transfer to bowl and serve.