Ingredients 1/4 pound spaghetti 1/3 cup finely chopped sliced pepperoni 1/3 cup finely chopped red bell pepper 1/2 cup chopped onion 1/4 cup freshly grated Parmesan 1/2 cup thinly sliced scallion 2 garlic cloves, minced 1 large egg, beaten lightly 1 teaspoon vegetable oil sour cream as an accompaniment Preparation In a large saucepan of …