How do i run a report to see how much money I spent with One particular vendor?

Good evening, @robt777burke. 

Thanks for reaching out to the Community. 

I can see how having the ability to view how much money you spent with one particular vendor would come in handy with QuickBooks Self Employed. However, this feature isn't yet available. If you'd like, I can submit feedback to our product development team so this could be considered in a future update. 

Additionally, you could us the Profit & Loss report to see how much you've spent entirely. Also, you could see the Business Spending breakdown in the Transactions page. 

Don't hesitate to let me know if you have further questions or concerns. You can reach out to the Community any time. Take care and enjoy the rest of your week!