How do I start a still 2D Level?

I’m relatively new to UE4, and I want to make a simple turn-based game. I’ve gotten as far as making a start menu, but I need a way to just start a level with a still, 2D background. I intend to then have the characters appear and then have UMG widgets pop up and ask what actions the player wants to do, etc. To summarize, I just want to know how to get a level with a stationary background, really.