Peel the cucumbers, cut them in half lengthwise and scrape out the seeds with a spoon. Cut the cucumbers into slices. Cook rice in boiling salted water for about 20 minutes. In the meantime, fry beefsteak mince in hot oil.
Add the cucumbers and fry for 1-2 minutes. Add stock and simmer for about 8 minutes. In the meantime, wash the dill, dab dry and put something aside for garnishing. Chop the rest finely and add to the cucumbers.
Wash, clean and seed the tomato. Cut the flesh into small cubes, add and heat briefly. Add cream and lemon peel to the cucumber, bring to the boil and thicken with sauce thickener.
Drain the rice and serve with the ragout. Garnish with dill. Sprinkle with lemon zests.