Final answer:
The main idea of the essay 'Rice for Thanksgiving' is the significance of rice as a staple food during the Thanksgiving holiday.
Step-by-step explanation:
The main idea of the essay 'Rice for Thanksgiving' is the importance and significance of rice as a staple food in many cultures and how it is celebrated during the Thanksgiving holiday. The author highlights the various ways rice is cooked and consumed during this festive season, illustrating its cultural and culinary significance. Through the essay, the author promotes an appreciation for rice as a staple food and encourages readers to include it in their Thanksgiving celebrations.