Crispy feta-egg taco

Heat a small nonstick skillet over medium. Sprinkle the cheese into the pan in a ring about 4 inches in diameter. When the cheese starts to melt, crack the egg into the center of the ring; sprinkle with the salt and black pepper. Cook until the whites begin to set, about 1 minute. Cover the pan and cook until the white is set and the yolk is cooked to your liking, 2 to 4 minutes. If the cheese starts to get too brown, remove the pan from the heat and keep it covered until the egg is done.

Using a thin spatula (such as a fish spatula), gently lift the egg from the skillet and place it on the tortilla. Top with the arugula, tomatoes, and hot sauce, if desired.