I would declare this item on my taxes if it is something I would not normally buy. If it was purchased for the purpose of photography, it should be an expense (and in Canada, at least claim the GST/HST taxes on the item).
Of course if you are professional your earnings from your studio / weddings etc will surely far exceed the income from microstock and the cost of a steak will in my opinion be inconsequential. Consider taking your camera when you dine out and get some shots before you eat. David.
yesprobably both the VAT (6% I think it is in NL) and the rest of the money involved can be seen as a cost and therefor declared on the revenue.The same will probably apply for the vegies and the fries. Even the butter, the plate, dishwasher etc. can be declared.
Decisive will be wether you will eat it after the shoot (which will make it a kind of natural income) so just throw it away. it will be too cold to eat
Where I live, if I bought the steak at a supermarket it would not be tax deductible because it has a 0% tax (all food that has not been prepared has 0% tax), but if I bought the steak at a restaurant it would be tax deductible because I was charged with a 16% tax.