The fittings are intended to supplement the diet. It also highlights the main food providing more color or flavor in the dish. But ... Does the steak or fried egg have to always go with potatoes? ... Depends. A thousand ways to make a garrison, valid and healthy, but there are many nutritional factors that help you choose the most convenient.
The lining may vary depending if it is: a public holiday, the age of the people sitting at the table, food that usually consumed in the family and in place, prices, tastes, ...
An example: In first rice. The steak ... With potatoes?? Almost always the answer is usually not in this case. The most convenient is a vegetable, raw or cooked: salad, baked tomato, a bit of eggplant or zucchini, ... - because we have taken the carbohydrates in the first course, and yet there is nothing of vegetables . But, if we have taken first Jewish eg, the best for steak are probably some potatoes.
Nuts also may have a role, not only to take as a mid-morning or snack.
Fruits very well accompany pork and chicken.
The tempura fried vegetables or to accompany all kinds of meat and fish.
Not only fried potatoes: You can also submit cooked, mashed, baked, with various cuts, ...
And so almost all foods. It is not done daily ultra-perfect meal, but to feed your family in a healthy way: A little of everything and a lot of nothing.