You can store any leftovers in the fridge, wrapped in cling film, for up to 3 days.
Instead of sausages, you can use any cooked meat you may have. Just place it in your baking receptacle after heating the coconut oil, wait until the oil temperature has risen again, and finally pour the Yorkshire batter around it.
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 in the UK. For U.S. option click
HERE.
Macros given are for Yorkshire pastry only, as sausages/other meat will vary.