However, you could use some creative options depending on the context:
* A spread of school dinners: This emphasizes the variety of food offered.
* A serving of school dinners: This emphasizes the quantity served.
* A feast of school dinners: This implies a large amount of food, perhaps for a special occasion.
* A rotation of school dinners: This highlights the changing menu.
Ultimately, the best way to describe a group of school dinners depends on the specific situation and what you want to emphasize.