My daughter got her very first sewing machine for her birthday and wanted to learn so I found a great beginner project: a pillowcase.
I found a couple tutorials on Pinterest, but to be honest, I had to watch a YouTube video to make sure I was doing it right. The second time she made this it was super fast though so once you know what you are doing, it's a piece of cake!
And since I didn't take any pictures along the way, I'll just direct you to the video I watched. I didn't actually add the little strip as you can tell in my picture so mine just is a piece of fabric 3/4 of a yard and one piece 1/4 of a yard. Easy!