I have had the privilege of testing some pdf patterns for the designer at Sewing Geek Patterns. They are super cute, easy to follow, and quick to sew up. Definitely something you should check out.
Here are some Comfy Shorts for my youngest, in an 18 month size
Here is the Olive Dress for my 4 year old
And recently the Comfy Shorts pattern was updated for larger sizes. Here it is on my 7 year old