Method
1
Preheat the oven to 200°C.
2
Place the sweet potatoes in a saucepan and cover them with cold water.
3
Bring the water to a boil.
4
Cook the sweet potatoes until tender, about 15 minutes.
5
Drain the sweet potatoes.
6
Mash the sweet potatoes with the butter and milk until smooth.
7
Heat the olive oil in a large skillet over medium heat.
8
Cook the onion and carrot until softened, about 5 minutes.
9
Add the ground lamb to the skillet.
10
Cook the lamb until browned, breaking it up with a spoon.
11
Stir in the tomato paste and flour.
12
Pour in the beef stock.
13
Stir in the peas and thyme.
14
Simmer the filling until thickened, about 5 minutes.
15
Season the filling with salt and black pepper.
16
Spoon the filling into a baking dish.
17
Spread the sweet potato mash over the filling, leaving a small border around the edge.
18
Shape the mash into a pumpkin with a spoon.
19
Score curved grooves into the mash with a fork.
20
Arrange the olive pieces as eyes and a mouth.
21
Place the green pepper strip at the top as a stem.
22
Bake until the filling bubbles and the mash is lightly browned, about 20 minutes.