Pre-heat your oven to 190 degrees and peel and chop the sweet potato into 3cm pieces and place it on a roasting tray. Bake the sweet potato for 35 - 40 minutes or until it's soft. Remove from the oven and allow it to cool for 10 minutes.
Reduce the heat of your oven to 180 degrees and line the based and sides of a large loaf tin.
Place the cooled sweet potato into your Thermomix bowl and mix for 10 seconds, speed 4 to mash.
Add the self raising flour, eggs, cinnamon, extra virgin olive oil, milk and salt to your Thermomix bowl and mix for 10 seconds, speed 4 to combine.
Scrape down the sides of the Thermomix bowl and mix for a further 6 seconds, speed 4 to combine.
Transfer the mixture to your prepared loaf tin and gently smooth the surface. Sprinkle the pepitas over the top and bake for 45 minutes or until cooked through when tested with a skewer.