Table 1.

Moderators' guide: overview of major topics and example of questions in the interview guides

Topics	Sample questions
Organization and anchoring of the project	How have you organized the project? (P, PL)
	How is the project organized? (T)
	What are the students' tasks in relation to the food on offer at the school and organizing the lunch break? (S)
Objective and actions	Please report what you have done to provide a good framework for healthy school meals at your school. (P, PL)
	What has been done to provide a good framework for healthy school meals at your school? (T)
	Where do the students normally eat at school? (T, S)
	Have the eating areas at the school been the same since you started attending this school? What do you think about these changes? (S)
	What kinds of foods are available to the students at school? (T, S)
	Has the food on offer at the school been the same since you started attending this school? What do you think about these changes? (S)
Challenges	What do you think the biggest challenges in the project have been? (P, PL)
	How did you handle these challenges? (P, PL)
	Have you experienced any other challenges in the project; for example, in connection with finances, organization, goal conflicts, equipment, time? (P, PL, T)
	Is there anything you think the school should do differently in relation to the food and drinks on offer (different selection, price, more appealing appearance and availability)? (S)
	Is there anything you think the school should do differently in relation to eating areas or the lunch break (the design of the eating area, environment, length of the lunch break, more/fewer food breaks)? (S)

P, principal; PL, project leader; T, teachers; S, students.