Spinach and Sweet-potato gratin.

Inspiration for this recipe is from Smitten Kitchen Blog. 
This gratin will serve 4.
It can be made GF by replacing the flour in the roux with cornflour'
It can be made dairy free by replacing the milk with Soy milk,  and leaving out the butter and cheese.
It is a tasty dish which can be served as a side dish,  or as a main with a salad.
It can be doubled.

Heat oven to 200 o C

Ingredients

1/2 large onion
2 cloves of garlic
1 Tablespoon of oil
300g.  of Spinach, OR  Silver beet,OR  Chard,  OR NZ Spinach, washed and drained.
250g Sweet Potato  OR Pumpkin, peeled and cut into 2cm cubes.
300mls of milk
35 g flour
1 Tablespoon of flour.
3/4 cup grated cheese.
Nutmeg.
Fetta OR Ricotta , Optional
S and P to taste.
thyme.

Method

Drop Onion and garlic on to blades,  speed 5 / 5 seconds.  Scrape down and add oil.
Cook,  5 mins/Varoma/speed 2.
Add spinach, and saute, 3 mins./100/speed 1.
Add pinch of Nutmeg and zap 5 seconds.,
Drain and push out liquid.  Discard liquid.
Set aside.
rinse out bowl
Add Sweet potato , zap speed 5 /5 seconds .
Set aside
Wash bowl.
Add to bowl 300 mls milk, 35 g flour and butter, good pinch of nutmeg.
Zap at 5 to mix,
Cook 7 mins/ 100/ sp2/

Into a heat proof dish (17/19 cm ),  place a layer of Sweet potato. Use 1/2 the mix.  Dot this with Fetta or ricotta,  if using.
Add  1/2 spinach,  then remaining Sweet potato,  then remaining spinach.
Sprinkle a little fresh Thyme over.
Pour the white sauce over and spread to edges.
Sprinkle over grated cheese.
Bake in oven until brown on top, 35/45 minutes.