Vegetable Quesadilla

Bahan-bahan (1 porsi)

• 1 teaspoon light flavored olive oil
• ½ small yellow onion (diced small, about ¼-cup)
• ¼ cup corn kernels (fresh, frozen, or canned)
• 1 small zucchini (quartered lengthwise and sliced thin, about ½ cup)
• ½ cup cooked chicken (chopped small, approximately ½ cup, OPTIONAL)
• 2 teaspoons butter
• 2 8 -10" flour tortillas
• ½ -⅔ cup freshly shredded Monterey jack or pepper jack cheese