Step 1

Spread a thin layer of pesto on one half of your tortilla.

Step 2

Over the pesto, add a light layer of mozzarella and feta (if using).

Step 3

Add tomato slices, spinach, and top with another layer of mozzarella cheese (to help "glue" it together).

Step 4

Carefully place the quesadilla on a skillet over medium heat. Let heat for about 5 minutes, flip, then heat for another 5 minutes or until cheese has melted and tortilla is slightly browned & crispy.

Step 5

Repeat the process for the second quesadilla.