2D MeshInstanceRenderer question

I was wondering how to do this without a prototype. Specifically, how to create a mesh on the XZ plane (I believe that faces the camera) with a PNG image on it.

Also, is this the best way to go about rendering sprites? I've seen that someone made a SpriteInstanceRenderer.

https://github.com/Unity-Technologi...ure/Assets/GameCode/TwoStickBootstrap.cs#L107

Code (CSharp):

1.         private static MeshInstanceRenderer GetLookFromPrototype(string protoName)
2.         {
3.             var proto = GameObject.Find(protoName);
4.             var result = proto.GetComponent<MeshInstanceRendererComponent>().Value;
5.             Object.Destroy(proto);
6.             return result;
7.         }