To prepare a green beans in spicy miso sauce hot and spicy recipe, you will need: Green Beans: Rinse the beans and pat them dry with paper towels. Heat the oil over medium-high heat. Add the red bell pepper and cook until tender, about 5 minutes. Stir in the white wine vinegar, soy sauce, sugar, salt, and pepper. Cook, stirring occasionally, until the sugar has dissolved and the liquid has thickened, 2 to 3 minutes, scraping up any browned bits from the bottom of the pan. Remove from heat and let cool slightly.