Can I create the meal plan during the appointment?

Yes. When you are in an appointment, in the meal plan step, you’ll see the following table with the patient’s meal plans (in this case the patient Felicia Robles doesn’t have any meal plans yet):

Click the blue “Add meal plan” button and you’ll see the following:

Click the green button and you’ll go to the diet generator.

Remember that whenever you see the timer in the sidebar (bottom left, with the green arc and the time 02:15), it means you have an appointment in progress. Don’t forget to finish it!