Pre-heat oven to 180 deg C (350 deg F) and lightly spray a 20 x 30cm (9 x 12 inch) oven dish with cooking oil
Use a microwavable bowl – melt the Butter – add the Flour and mix until a paste has formed, slowly add the milk, stirring every now and then to combine the paste and the Milk. (make sure to scrape the sides and bottom as the paste clings a bit)
Microwave at full power for two minutes, remove and stir to break up any clots before returning the sauce to the microwave – repeat this step about three times, but with one minute intervals. As soon as the sauce is thick, put aside to cool slightly. (around 5 minutes will do)
Meanwhile, add the Viennas, Bacon, Cheddar, Corned Beef and the Eggs to a large mixing bowl – mix well to combine all and then add the cooled White Sauce – mix well again
Transfer mixture to the prepared oven dish – bake 40 – 45 minutes until puffy and light brown
Nutrition value, where given, is not always accurate. Please also check your ingredient labels.