ok, i'm Russian, so here we go: Breakfast: tea with sandwiches are more popular nowadays, but also: porridge, pancakes, curds ( this product isn't often used in europe, but actually it's wonderfull, cause it is nice to have it with honey or to make some dishes with it, even some kind of pancakes (my #1 breakfast btw) )
lunch: soup (borscht, cabbage soup and other)
dinner: potatoes and meat rissoles, pilau (asian culture influence), meat dumplings (north influence) etc
Most traditional dishes: borscht, meat dumplings, porridges