We all know there are four tastes - salty, sweet, sour and bitter. But researchers have identified a fifth taste and that is umami - the rich, savory taste of some foods. This taste is found naturally in certain foods - very ripe tomatoes, anchovies, parmesan cheese and mushrooms to name a few. It's why fish sauce and soy sauce make fried rice so savory.
Cooks have known for ages that these foods enhance the taste of savory dishes. It's because these foods naturally contain glutamate. It is why MSG (monosodium glutamate) makes foods taste better. If you like the way adding a chicken or beef bouillion cube (which has MSG in it) enhances the flavor of a sauce or a stew, why not try adding a food that naturally contains glutamate?
It's why Italian cooks often add an anchovy in the beginning when cooking a sauce. Even if you don't like the taste of anchovies, you will never know it is there. It completely dissolves but it adds a depth of flavor you would not have otherwise. Don't say, "Ew! I don't like anchovies!" Take advantage of the glutamate in this food and enhance your cooking - your umami!