I have a recipe that calls for me to roll up turkey in puff pastry. What can I use as a substitute for the puff pastry, preferably that is lower in saturated fat?
Whole wheat puff pastry. It's expensive, and hard to find, though.
Or try another recipe. If the recipe you're using calls for puff pastry, then the flavor and texture of the puff pastry is going to be a big part of the dish. It never works very well to substitute a primary ingredient in a recipe.
Croissant rolls or crescent rolls, found by the biscuits in the supermarket.
This might be a wild bet, but I would try something out with tampura.