What is Hilary Erickson's method for meal planning using daily themes?

Hilary Erickson suggests using daily themes for meal planning. The basic idea is that each night has a theme. Some theme ideas include Italian Night, Burger Night, Casserole Night, Pizza Night, Chicken Night, Meatless Night, Mexican Night, or even a Leftover night. Each week your calendar will have one of these themes. This method is great for people who find meal planning overwhelming and have a hard time narrowing it down. It provides a loose flexibility that makes it easier to narrow down meals and ensures a wide variety of meals while still allowing for flexibility based on who's eating dinner and other schedules.