Thread the beans, bring 1/4 liter of salted water to the boil. Steam the beans in it for 10 minutes. Roast the pine nuts (which works very well in the microwave, by the way!), Cut the garlic into slices and fry lightly in 1 tablespoon of olive oil over a mild heat. Fold in the rosemary needles. Halve the cherry tomatoes. Mix the balsamic vinegar with the rest of the olive oil and season. Arrange the beans with the tomatoes on a platter. Pour sauce, garlic, pine nuts and rosemary over it.