Slide one large strawberry onto a short bamboo skewer. Drizzle with honey, then roll in the chopped pistachios to coat evenly.
Whip the goat cheese, cream cheese, Greek yogurt, and lemon juice together until smooth. Chill in the freezer until firm enough to roll.
Roll the goat cheese mixture into small balls and thread one onto the bottom of each skewer.
For the drizzle, combine the mashed strawberries, beach plum jam, lime juice, and honey in a small saucepan and warm gently over low heat.
Arrange the skewers on a platter and drizzle generously with the warm strawberry–beach plum sauce.
Garnish with fresh mint and a final scatter of chopped pistachios. Serve immediately.