Melt peanut butter and milk chocolate chips with shortening in a double boiler over simmering water. Stir periodically until the chips are completely melted and smooth.
Meanwhile, line a large baking sheet with wax paper.
Spread the pretzel crisps evenly over the pan, overlapping is fine. Sprinkle peanuts over pretzel crisps.
Pour the smooth chocolate over the pretzels and peanuts.
Use the back of a spoon or an off set spatula to spread the warm chocolate covering the pretzels and peanuts completely.
Nestle the Reese's Pieces Pastel Eggs into the chocolate while it's still warm. There's no exact way to do this, be creative!
Fill in with the Easter sprinkles.
Allow the pretzel bark to set up and harden, then break or cut into pieces.
Store at room temperature.