Place the popped popcorn and pretzels in a large mixing bowl. Gently toss to combine.
In a microwave safe bowl, melt the white chocolate melting wafer in 30 second increments, stirring in between, until smooth and fully melted.
Pour the melted chocolate over the popcorn and pretzels and gently stir until everything is evenly coated.
Add the m&m and cadbury eggs and gently stir until evenly mixed throughout.
Spread the mixture onto the parchment lined baking sheet and immediately sprinkle the pastel sprinkles over the top so that they stick to the melted chocolate.
Allow the snack mix to sit at room temperature for 10-15 minutes or until the chocolate is fully set.
Once the chocolate is set, pour the mixture into a serving bowl or package into cute bags or boxes for gifting.
Store in an airtight container or ziplock bag if you are not enjoying the snack mix the same day.