Break out of Your Dinner Rut With Waffle-Iron Chicken Quesadillas 

ripe avocados, peeled and chopped (about 2 cups)

chopped red onion

fresh lime juice

diced tomato

chopped fresh cilantro, divided, plus more for garnish

kosher salt

Cooking spray

(7-inch) whole-wheat or grain-free tortillas

preshredded part-skim Mexican cheese blend (about 1 1/3 cups)

shredded cooked skinless chicken breast, divided

Store-bought salsa (optional)

Sour cream (optional)