This is basically a substitute for the Let's Try activity on page 50 of the New Horizon Elementary grade 6 textbook. There is space for students to draw the sandwich ingredients if they have time, too. And a script for the conversation is at the top of the worksheet.
There is also an ingredients list along with where the ingredients come from in the digital textbook, called サンドイッチの食材 (sandouichi no shokuzai). You can access it by clicking the little purple book with a flower on the page in the digital textbook (teacher's version) or by navigating to the student textbook -> Unit 5 -> Your Turn -> サンドイッチの食材 資料 (sandouichi no shokuzai shiryou). I went ahead and printed one for every student and passed them out along with the worksheet.
Thank you!! I spent this morning looking up production areas for all the ingredients, but it was in the textbook the whole time! Saved me for an emergency T1.