For a lightening-fast meal, make the pastries the day before, store them in an airtight container and simply re-heat them when you're ready to serve them.
If you're making this for one person, halve all ingredients except those for the pastry. You'll have 2 pastries left over that you can use the next day, filled with whatever you fancy.
Metric kitchen scales are an inexpensive yet invaluable gadget to enable accurate measurement of ingredients. Store them upright in a cupboard or over your worktop and they'll only take up a tiny bit of space. Click
HERE for the ones I use (UK Link). For U.S. option click
HERE.