With a few adjustments this could be made vegetarian. Chicken Cheese Quesadilla Pie - I would drop the cilantro and add ham or bacon. Maybe do them in large muffin cups.
Chicken and cheese quesadilla pie via America's Test Kitchen
Cheesy Chicken Quesadilla Pie - Circle B Kitchen - Circle B Kitchen
Try Cheesy Chicken Quesadilla Pie! You'll just need 3 flour tortillas, white or wheat, Vegetable or canola oil cooking spray, 3 cups cooked.
easy chicken quesadillas - added some green pepper and Parmesan cheese. Huge hit. Great flavor!