Line each cup of a muffin tin with a thawed spring roll wrapper. Fold each wrapper over 3 or 4 times to fit cup, thereby also creating several layers.
Repeat till all 12 cups are lined.
Optional: lightly spray the pastry in each cup with 2 or 3 sprays of cooking spray.
Bake for about 5 minutes at 200 C / 400 F until browned and crisp.
Remove from oven and muffin cups; let cool on wire rack.
Fill each tart shell with a few spoonfuls of pie filling, till jar is used up.
Optional: for serving, top with a spoonful of pudding, custard, double-cream, whip cream, etc.
Notes
There is no need to grease the muffin cups.We used medium-sized muffin cups.Store in refrigerator in covered container.Tip: only fill with pie filling as many as you are going to use at one time. Keep the empty ones unfilled (these can be stored unrefrigerated) until ready for use. That way, they won't go soggy in the fridge from the pie fillngs.