Simplify the following text for a Grade 5 native English-speaking person.
Original: Mirepoix , either raw , roasted or sautÃ ed with butter , is the flavor base for a wide number of dishes , such as stocks , soups , stews and sauces .
Simplified: Mirepoix is used in many dishes , such as stocks , soups , stews and sauces . It is used either raw , roasted or sautÃ ed with butter .