Master Challenge Course Template

Hi DanaGleason I don't know if we have plans to create something like that, but here's what I would do. 
I'd first create my own template course with just a quiz added to it and any needed changes to the theme. Rise will give you two placeholder questions in the quiz by default (multiple-choice and multiple-response), but if you normally use certain question types, you could just add placeholders for each of those. I would then duplicate that course anytime I needed to, instead of starting a new course from scratch. 
If you are using a lot of the same questions, you could have those in your template course or add those questions to a question bank so you can quickly add them in. 
I hope that helps. But if that's not what you're looking for, please let me know!