Preheat your oven to 350 and prep your cupcake pan for nonstick.
Next, place your cake mix in a large mixing bowl and use a fork or whisk to break up any lumps.
Add the eggs, oil and water to the mixing bowl and mix until just combined. Then use a medium cookie scoop to scoop the batter into your prepared cupcake pan.
Bake your cupcakes for 18-20 minutes or until the top of the cupcakes spring back when touched and a toothpick inserted into the middle of the cupcake comes out clean. Then transfer the cupcakes to a cooling rack to fully cool.
While your cupcakes are cooling, in a good blender or food processor, pulse your strawberries until they are finely chopped but, not a liquidly consistency.
Once the cupcakes have FULLY cooled, use an apple corer or handle from a wooden spoon to dig a hole in the top of the cupcakes. You can discard the cupcake portion that you dug out. Then use a teaspoon to place the processed strawberries into the hole that you just dug out.
To make the frosting, beat together the butter, powdered sugar, vanilla extract, and milk for about three minutes on medium-high speed until creamy.
While your frosting is beating, you can mash up the freeze dried strawberries into powder using a mortar and pestle, food processor, or blender. Then beat this into frosting until combined. You can skip this step or use a tablespoon or two of (dry) strawberry jello if do not have the freeze dried strawberries. Use a piping bag or a frosting spatula to frost over the hole and cover the tops of your cupcakes before serving.