> I have oal groats from Russian Altai.
> What I can add to groats after 30 minutes into hot water with fire: ?

I believe you mean oat groats, with a T.
If I am wrong, let me know. Are Altaic
oats different from what is grown elsewhere,
I wonder. There are supposed to be many
ancient grains grown in that region, 
Mongolia and the eastern part of the Russian 
Federation.

Here, oats are more processed, usually
crushed or partially ground, making them
easier to prepare and digest.

Back to your question: do you prefer sweet 
or salty (savory) tastes? In the USA, oats 
are usually eaten sweetened for breakfast 
- butter, milk, and white or brown sugar 
are common; also raisins or other fruit.

> I have potato after 40 minutes into hot water. I have microwave owen.
> I have milk, salt and pepper.
> I have yellow paper.
> 2) What else?

Yellow paper = ? Do you mean pepper
(peretz), or something else.

You could make pureed or mashed potatoes, 
adding your milk, salt and pepper, also 
butter or sour cream, all according to 
your taste. If you like some texture to 
your dish, you could toss the cooked
potatoes in butter, season with salt and 
pepper, and strew some dill, parsley, or 
chives on top (chop the herbs first).