Step 1

Place parsley into Thermomix bowl and chop **3 sec/speed 6**. Remove from bowl and set aside.

Step 2

Place cheese into Thermomix bowl and mill **3 sec/speed 7**. Remove from bowl and set aside.

Step 3

Place sweet potatoes into simmering basket, insert into Thermomix bowl and pour 1 Litre water over. Place spinach into steamer dish and set into position. Cook **20 min/Varoma/speed 4**. Remove steamer, set aside.

Step 4

Remove and drain sweet potatoes, return them to Thermomix bowl and add butter, seasoning and milk. Mash **10 sec/speed 6**. Set aside.

Step 5

Place onion and EVOO into clean, dry Thermomix bowl and chop **4 sec/speed 4**. Add carrot and saute **4 min/Varoma/speed 1**.

Step 6

Add mascarpone, lemon juice, mustard, nutmeg, and combine **5 sec/Reverse/speed soft**. Fold in tuna and peas with a spatula.

Step 7

Preheat oven to 200ºC. Butter a 20cm deep pie dish. Pour tuna mixture into dish, top with wilted spinach, finish with mashed potato and sprinkle with parsley and cheese. Bake for 20 minutes until well browned. Serve hot.