1 Whisk the egg whites and egg together. Scramble in a skillet coated with cooking spray and set aside. 2 In a large bowl combine the black beans, corn, scrambled eggs, onion, cilantro, shredded cheese, and taco seasoning. 3 Place 1/3 of the mixture in each tortilla and fold over. 4 Place in the freezer on a plate or baking sheet lined with parchment for one hour. Remove and wrap individually to store or place in a freezer safe bag. 5 To reheat, take out the quesadilla and microwave until cheese is melted. To reheat in a skillet, first microwave it to defrost and then warm in a skillet to get the outside nice and crispy.