Pop corn according to package directions. I used 2 bags of microwave popcorn. Put popped corn and crushed Fritos into a large bowl. Make sure to get all of the unpopped kernels ("grannies") out or someone will break their tooth. Melt chocolate in a microwave safe bowl in 30 second increments, stirring in between, until melted. Pour melted chocolate over popcorn mixture and stir to coat completely. Pour onto a wax paper or parchment paper lined cookie sheet and sprinkle with M&Ms. Allow to cool and dry.