How to correctly cast Class to an interface?

Question

Java

The Pizza class is read from the configuration and instantiated via Class.forName, it implements the IMeal interface. The question, in fact, is how to correctly cast the read Class to the IMeal interface?

private static IMeal readConfig() {
        Path dependencyPath = Paths.get("gof/src/main/java/resources/config.txt");

        File file = dependencyPath.toFile();
        IMeal IMeal = null;

        try (BufferedReader reader = new BufferedReader(new FileReader(file))) {
            String line = reader.readLine();
            Class mealClass = Class.forName(line);

            IMeal = IMeal.class.cast(mealClass);
        } catch (IOException | ClassNotFoundException e) {
            e.printStackTrace();
        }

        return IMeal;
    }