Header Image Problem

Here is my site https://www.ieatpeople.com.

I cannot get my header to line up the way that I like it. It looks fine on certain moniters, but on wider ones, it stretches farther to the left as some of you may be able to see.

Now, I just have the code for the picture simply pasted into the header.php file and I know that is the wrong way to do it. I really want the header image to universally line up on the left so it is even with my sidebar.

I realize that I need some additional code to make this happen, but I just don’t know where to start. If any one has any suggestions, I would really appreciate it. Thanks for your time.

-Mike