Cook the rice in plenty of salted boiling water according to the package instructions (about 12-15 minutes);
Stir the rice once after pouring it into the water, but don’t touch it again;
Taste it for doneness; It should be “al dente.” Don’t overcook it;
Rinse it in cold water , which helps keep the rice firm so the grains don’t stick together;
Boil the frozen peas for about 6 minutes and let them cool down completely;
Rinse the pickled cucumbers and mushrooms in a strainer under cold water; dice and put them, into a big salad bowl;
Peel the carrots with a peeler and cut them into small pieces; add to the bowl;
Wash and finely dice the celery and add to the bowl;
Dice the ham, cheese, and tuna and add to the bowl;
Add the rice and two tablespoons of oil; toss until well combined;
Season with salt, lemon and sprinkle with finely chopped parsley;
Prepare the hard-boiled eggs; when cool, peel and cut them into 4 wedges; garnish the salad with them;
Cover with plastic wrap and refrigerate overnight;
Serve it the following day; make sure to toss it well before serving.