If you are in big city, even in foreign country, you probably have
Japanese or Asian grocery store. Try Natto ! It is like blue cheese, smelly, but tasty and nutritious. ( Tasty.. is up to you.
Please prepare soy sauce or Yuzu flavoured vinegar soy sauce)
I put rice first, then put natto, then chopped green onion, and fresh raw egg. Finally Yuzu( Japanese lemon or lime) soy sauce
over it. Quick breakfast.