01 -  Preheat the oven to 400°F (200°C). 
 02 -  Place the flatbreads on a baking sheet. 
 03 -  Spread a layer of pesto evenly over each flatbread. 
 04 -  Arrange the sliced mozzarella on top of the pesto. 
 05 -  Add the cherry tomatoes, zucchini, bell pepper, and spinach evenly across the flatbreads. 
 06 -  Bake in the preheated oven for 8-10 minutes, or until the cheese is melted and bubbly. 
 07 -  Remove from the oven, slice, and serve warm.