Unfortunately, you can not count buying lunch between jobs as a business expense. A business expense is a cost you incur for the sole purpose of earning business income. In your case, it is considered a personal expense and can not be deducted.
For more information please see the Canada Revenue Agency(CRA) link for Business expenses.
Thank you for using TurboTax
TurboTax Expert Assist
Get answers to all your tax questions
Our experts are available on-demand, no appointment needed. Get help all year long with TurboTax Expert Assist.