HI Glenn,  Yes! You can use a Wizard to do this!  Here’s an example of how to create an object + related records at once  (just use the account object instead of the contact object as the main page object).

Rob suggested you use a model action that creates a junction object record (with the Contact field equal to {{Id}}) every time a contact record is created. Model order here is important.  Account — Contact — Junction object…   And then you just have a on your junction object where Account Id = the Id from the Account Model.

Does that make sense? Let me know if you run into any problems!

I recently did a version of this, not entirely on 1 page but with redirects it basically did a circle. On my contacts tab I used the the run multi action option for my save button. After filling in all the contact info required the save button would render. After clicking on it a pop up would appear showing 2 buttons. 1 save and continue to contacts the other save and create an account. When you click on the save and create an account it redirects you to a blank account page which includes tabs to create the new accounts, new opportunities, new case studies, new leads, and any other additional contacts. I then have a redirect on that save button to take you back to the original contact list view which is where the original create new button was. So I created 2 diff. pages with lots of add ons with actions to make this circle back around. If you want I can post a few screenshots of the actions I have set on all the buttons, again if this is a possible direction you would want to go or if you think it might help you come up with your own version. 
Just let me know.

AJ