Pasta with potatoes soup

When you are sick at home...you want to pamper yourself cooking something good.
Pasta with potatoes soup, in my opinion, restores immediately wellness, like a very fashionable comfort food.
Ingredients for one person:
3 medium potatoes
1/2 onion
3 tablespoons tomato sauce
1 tablespoon tomato paste
60 g small pasta (" tubetti" type like little tube-shaped)
50 g cubed Parmesan cheese
a pinch of salt
extra virgin olive oil

Preparation:
I put the chopped onion in a saucepan to brown with extra virgin olive oil, then cubed potatoes, both tomato sauce and paste.
I brown still for five minutes over a low flame then I add a pinch of salt and water to cover it.
I wait 15 minutes cooking potatoes and then I add small pasta in the same soup (adding water if necessary, if pasta isn't cooked and the sauce thickens too much).
Two minutes before dousing (small pasta cooks normally in about 10 minutes, look at pack instructions) I add cubed Parmesan cheese(closest part to the crust, more hard).
Later, I mix it out of stove.

A spoon, a napkin and a beautiful ray of sunshine through the window...I 'm feeling much better.