In a large bowl, whisk together the beaten eggs, granulated sugar, ground cinnamon, and 1/4 teaspoon kosher salt. Stir in the cottage cheese, sour cream, and raisins until well combined.
Pour the noodle and custard mixture into the prepared baking dish, spreading it out evenly.
Sprinkle the topping evenly over the noodle mixture. Place the dish in the oven and bake until the custard is set and the top is golden brown, about 55 to 65 minutes.