Clean the beans, wash them. Steam them covered in little boiling salted water for 8-10 minutes. (Put frozen beans unfrozen in 1/8 l boiling salted water. Bring to the boil and cook for 4-5 minutes). Drain
Peel and chop the onion. Wash the chives and chop finely. Wash salmon, dab dry and chop very finely. Mix everything and squeeze the lime. Season tartar with lime, salt, pepper, sugar and oil
If necessary, roast sesame seeds in a pan without fat, remove. Arrange the salmon tartar with the beans. Sprinkle with roasted sesame seeds and garnish