Well...I'm not a recipe person I just sorta throw stuff together so I don't have measured amounts for you but I can give you an idea of what I do.
I marinade some chicken breast in some salt, pepper, touch of cayenne pepper or paprika. Then I add to the ziploc bag one lemon (juice squeezed out then chuck it in the bag), one or two limes (juice squeezed ect.), half of an orange and 2 finely chopped jalapenos no seeds. I let that marinade overnight if possible and if not for at least a couple of hours. Grill the chicken and then add it to your quesadilla. I usually just use cheese and make some home made salsa on the side, little sour cream and mmm mmm good.
The same marinade works pretty well on flank steak.