Defrost the spring roll dough. Peel mango and banana and cut into fine cubes. Remove the pomegranate seeds from the fruit. Mix prepared fruit, lemon juice and 1 tablespoon sugar. Place 4 spring roll leaves side by side on the work surface.
Pour 1-2 tbsp. of filling into the left-hand corner, leaving a 4 cm margin at the top. Brush the edges with water. Beat the tip over the filling. Turn the corners from both sides towards the middle and roll up to a firm roll.
Proceed in the same way with 4 pastry sheets. Refreeze the remaining dough. Heat oil in a pot and bake the spring rolls in portions in hot fat for 4-6 minutes until golden brown. Drain on kitchen paper and turn in cinnamon sugar.
Wash mint, shake dry. Pluck the leaves from the stalks, except for something to decorate, and chop finely. Mix yoghurt, 1 tablespoon sugar and mint. Arrange spring rolls with yoghurt.