Place green string beans in a baking dish. Drizzle olive oil and season with salt, pepper and crushed red pepper flakes. Bake in a 425 deg oven until beans are a little crispy - about 15 to 20 mins. In a bowl big enough to hold the beans whisk 2-3 tbsps of balsamic vinegar, 1 tsp of honey and 1 tsp of dijon mustard together. Toss the beans in the mixture and serve as a side or a snack.
Source: Blue Kitchen