Here I made a quick hand from what I found in the refrigerator, and it turned out a wonderful, tender salad. And, most importantly, my husband was happy! Girls, I didn't take step-by-step photos. There are thousands of salad recipes on the site, where step-by-step instructions show how to cut vegetables into cubes.
All that can be cut into cubes, and they cut, leave in a bowl. Add corn (it is very problematic to cut into cubes) and mushrooms. Add the green onions and herbs (dill, parsley, coriander), mix everything. Season with mayonnaise and mix gently again.