How do i record expenses for health insurance premiums in QBO Plus?

Why would you?  Personal finance and personal expenses do not belong in the company accounting, but if you must ...

Make a deposit in a cash type bank account and use owner equity investment as the source account for the deposit

write a check on the cash account, do not print, and use the insurance expense account 

The reason I would is because health insurance premiums are often deductible on US taxes if you are self-employed, so having it as a business expense might help that. But it's possible that it's deductible elsewhere so it might not be the right solution.