Whisk eggs, milk and salt in medium bowl. Heat large skillet sprayed with non-stick cooking spray on medium heat. Add egg mixture; cook and stir 5 minutes or until eggs are softly set. Remove from pan; keep warm.
Heat oil in same skillet on medium high heat. Add potatoes, onions and peppers. Cook and stir 8 - 10 minutes or until veggies are tender and potatoes are lightly browned. Gently stir in Wings Sauce until well mixed. Push potato mixture to outside edges of pan.
Spoon eggs into center of skillet. Remove skillet from heat. Sprinkle tortilla strips over eggs and top with crumbled Cotija and cilantro. Drizzle with additional Wings Sauce, if desired.
Test Kitchen Tip: While this is a great way to use up leftover potatoes, you can also simply microwave potatoes to use in this recipe. Pierce 1 pound (about 2 medium) potatoes with a fork. Place potatoes in microwave-safe bowl with about 2 tablespoons water. Cover. Microwave on HIGH about 10 minutes, or until tender, turning halfway through cooking.