- STEP 1
Boil the potatoes in salted water for 20 minutes until tender
- STEP 2
While boiling, fry the vegetables, adding them to the pan in the order listed.
- STEP 3
Then add all the sauce ingredients except for the corn flour. Once simmered for 5 minutes (or longer if you have time), add the corn flour and simmer until thick.
- STEP 4
Preheat the oven to 200C. Make the mashed potato by mashing the drained potatoes with the other ingredients.
- STEP 5
Put the sauce in the bottom of an ovenproof dish, add the mash on top. You can sprinkle with some reserved cheese if you like. Bake for around 20 minutes, until boiling and golden brown on top. Alternatively, freeze and defrost before baking or bake from frozen which will take longer to cook.