PREHEAT oven to 375° F.
COMBINE flour, baking soda and salt in small bowl.
Beat softened butter, granulated sugar, brown sugar and vanilla extract in large mixer bowl until creamy.
Add eggs, one at a time, beating well after each addition.
Gradually beat in flour mixture.
Stir in M&M's and chocolate chips
Drop by rounded tablespoon onto ungreased baking sheets.
BAKE for 9 to 11 minutes or until golden brown.
Cool on baking sheets for 2 minutes; remove to wire racks to cool completely.