If I read your question correctly you are asking about doing a render. Doing a simple render of a single object is usually fairly straightforward and there is a really good beginner course on it here. This will get you a 2D image (like a PNG file) of whatever your camera in your scene is pointed at and normally takes into account lighting information in your scene. There are TONS of options when doing a render and some of them can be confusing or obscure.
If you are asking about how to make a 3d object look like it was drawn in 2d thats more advanced of a question. There is a ShaderForge lesson here on how to make 3d objects look like 2d clip art. That lesson could be a starting point if that's what you are trying to do.
. (tip use ctrl+alt=num pad 0 to move the camera to match the current view. )
