Very tasty gyoza.

There was a mobile shop of Utsunomiya-gyoza at a supermarket near my house.
My family had a free sample of them and we liked it.
So we dicide to buy them a lot.
My son also liked it so that he said he wanted to eat more!

とても美味しい餃子

家の近くのスーパーに、宇都宮餃子の移動販売が来てた。
試食したら、めっさ美味しかったんで、いっぱい買って帰った。
息子くんも、「もっと食べたい！」と、超お気に入りだった。

修正内容

Very tasty gyoza.

There was a mobile sale of Utsunomiya-gyoza at a supermarket near my house.
→a mobile shop

Our family tried it, it was so good so that we bought a lot.
→My family ( My wife and I ) had a free sample of them and it tasted so good/ and we liked it. (両方伝わりますけど私だったら後者の方を使います。)
So we decided to buy them a lot.

My son also liked it so much that he wanted to eat more!
→My son said that I wanted to eat more which means he also liked it very much.
My son also liked it so that he said he wanted to eat more!