I re-heat meals through most of the year but if items weren't prepared or cooked I'd be charging my full meal charge, I think!
here's something to start you off - I just ask that meals are cold, ready-to-eat in the summer holidays.
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Dear Parent
Now that the summer weather is finally here I hope to make the most of it. We plan to go to [x,y z] and have picnics and lots of outdoor fun.
Therefore, from Monday [date] I ask that all parent provided meals be packed lunches/cold meals and ready to eat as I will not have access to reheating facilities outdoors.
[if applicable:] As always, I am happy to provide suitable nutritional meals if you would prefer the convenience: Breakfast £1.40, Lunch £1.50, Dinner £2.00.
Kind Regards,
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autumn letter
Dear Parents
Now the weather is getting colder we will not be having many picnics for the time being! I am happy to provide cooked meals at the following fees: Breakfast £1.40, Lunch £1.50, Dinner £2.00.
Or, if you prefer to provide meals I am happy to reheat one-pot chilled or frozen bought or home-cooked meals. However, as I work alone, have limited kitchen space and prefer that we all enjoy our meals together, it is not practical to prepare and heat a different meal for each child. Therefore I must ask that ALL preparation of parent provided meals is completed out at home. Meals should be ready to eat and require no more than reheating and serving.
In view of the time and electricity/gas involved and the fact that my time in the kitchen detracts from the quality time I can spend with the children, there will be a preparation fee of £1.50 for each meal that requires more than simply re-heating. [I haven't done this, just thought of it!]
I appreciate your co-operation in this matter and, as always, happy to discuss.
....
NB - I've found a couple of parents expect you to stay in during 12-2 to avoid high sun so you might need to explain about finding shady areas to sit & eat and that you use this kind of activity as a way of teaching sun safety -
info.cancerresearchuk.org/healthyliving/sunsmart/