In a large saucepan, melt the butter over low heat.

Add the mini marshmallows to the melted butter and stir until fully melted and combined.

Remove the saucepan from the heat and stir in the chocolate cereal until evenly coated.

Allow the mixture to cool slightly, then shape it into nest shapes on a parchment-lined baking sheet.

Place candy eggs in the center of each nest.

Add sprinkles on top, if desired.