Start by bringing a large pot of water to a rolling boil over high heat. Add a pinch of salt.

Once boiling, add the pasta from your mac and cheese box. Cook for 12-13 minutes until al dente.

Carefully drain the pasta in a colander and return it to the pot immediately.

Stir in the cheese sauce packet and 4 tablespoons of butter over low heat until creamy.

Gradually add green food coloring to the cheese mixture while stirring until you reach the desired hue.

Spoon the mac and cheese into serving bowls and decorate with candy eyeballs or plastic spiders.