Prepare two muffin tins with a coat of cooking spray. Set them aside.

Add the marshmallows to the saucepan then repeatedly stir until well combined.

Melt butter in a large saucepan over low to medium low heat. 

Remove the pan from the heat then pour chocolate rice krispies into the pan. Mix well. To make the mixing a little mess messy I like to coat a large spoon with cooking spray. 

Add a scoop of the chocolate rice krispie mixture to each muffin tin. 

Press the cereal into the shape of nests. Again, I like to coat a spoon (or my hands) with cooking spray to keep the cereal in the tin rather than everywhere else.

Allow the chocolate rice krispie nests to cool in the pan then remove them before filling. I use a tablespoon to remove them.

Cut pieces of the edible grass and place it into the bottom of each nest.

Add chocolate eggs and serve.