Dear Mom and Dad,
Happy Thanksgiving! I am very thankful for you supporting me in many ways. First, you have been helping me for a long time. I appreciate when you take care of me when I'm hurt. Next, you cook meals for me every day. Mom prepares the best dishes in the world. Also, you do a lot of fun things with me. When we went to the aircraft carrier, I really liked it, didn't I? Clearly, I want to thank you very much. Love, Gabriel.
The paragraph structure taught in school comes out ("First," "Next," "Clearly,"), but the content is his. A nice insight into what flits through the mind of a 7-year-old!
And of course, I am so, so thankful for him.