To make a sweet and tangy green bean recipe, first you need to prepare the green beans. First, you will need the following ingredients: Green Beans: Wash the beans and cut them in half lengthwise. Cut each half into thirds. Chop the onion and garlic. Add the garlic, onion, and green bell pepper to the pot. Cook the mixture over medium-high heat until the vegetables are tender, about 5 minutes. Then, add the tomatoes and cook them for an additional 5 to 10 minutes, or until they are heated through. Remove from heat and stir in the sour cream, parsley, thyme, salt and pepper. Serve immediately.