Combine the sweetened coconut and 2 - 3 drops of leaf green food coloring into the ziplock bag and shake until fully combined.
Using two small bowls, scoop about ¾ c vanilla frosting into each bowl and mix in a few drops of red food coloring into one bowl and a few drops of yellow food coloring into the second bowl.
Scoop the red colored frosting into 1 piping bag and the yellow colored frosting into the second piping bag. Set aside.
Preheat oven to 350 degrees and line the 13x9 baking sheet with parchment paper and line the cupcake pan with cupcake liners
Follow the back of the yellow cake mix box to make the batter, set aside while you make the brownie batter
Follow the back of the brownie box to make the brownie batter
Fill the cupcake liners, ¾ way full and sprinkle some sesame seeds on top of the cupcake batter Pour and spread evenly the brownie batter onto the baking sheet
Sprinkle chocolate chips on top of the brownie batter.
Bake the cupcakes at 350 degrees for 21 minutes.
Bake the brownies at 350 degrees for 21-25 minutes or until a toothpick comes out with little crumbs. Allow to cool completely.
Once cooled, remove the cupcake from the pan and remove the liners, cut the cupcakes in half so that you have a cupcake bottom and cupcake top.
Cut the brownies into 4in thick slices that way it's easier cut out the brownies Using the cookie cutter, cut out 12 rounds and set aside.
Using the yellow frosting, cut the tip and pipe a squiggle layer of “mustard” frosting on the top of the cupcake bottom.
Carefully place a brownie round on top of the yellow frosting.
Using the red frosting, pipe a squiggle layer of frosting for “ketchup”.
Sprinkle about 2 tbsp of green colored “lettuce” coconut of top of the “ketchup” Place the top of the cupcake on top of the “lettuce”.
Enjoy!