Preheat oven to 350°F (175°C). Grease a 9-inch baking pan with butter or cooking spray.

In a medium bowl, whisk together the egg whites, skim milk, garlic powder, salt and pepper until combined.

Pour the mixture into the greased baking pan and spread evenly. Bake for 15 minutes until golden brown on top.

Let cool for 5 minutes before cutting into 12 equal pieces. Serve warm with your favorite condiments such as salsa or hot sauce!