In a bowl, combine the cubed mango, scooped passion fruit pulp, and yogurt and mix well. Line a sheet pan with parchment paper and place the filling on it in small bite-sized portions. Freeze for an hour.

In a separate bowl, add the white chocolate and oil. Microwave the bowl in pulses of 10-20 seconds, stirring the mixture after each pulse, until the chocolate is fully melted and smooth.

Remove the mango bites from the freezer and dip them in the melted white chocolate coating using two teaspoons. Arrange the coated bites back on the sheet pan, sprinkle lime zest, and freeze for another hour.