Grilled Vegetable Quesadillas

large ancient grain tortillas

large zucchini (sliced into 1/4 inch slices)

large squash (I used a cousa squash, but yellow zucchini is fine too, sliced into 1/4 inch slices)

large portobello mushrooms (sliced)

red bell peppers ( or sweet pointed red peppers)

large red onion (sliced)

mozzarella cheese (shredded)

pesto (store bought)

salt (or to taste)

salt (or to taste)