For the pizza dough, please refer:
https://chewbaccascook.wordpress.com/2016/10/24/easy-thin-pizza/

For pizza sauce:

Small onion 1 (optional, if you don’t like, you can delete it.)

Butter 15g

Flour 15g

Milk 200g

Salt

Black pepper 

Mixed herbs (optional)

1. Heat butter in the pan. When it melts, put in flour. And quick stir evenly.

2. Add in chopped onion. Stir a bit.

3. Pour in milk. Turn to low heat. Keep stirring till sauce becomes condensed.

4. Sprinkle some salt, black pepper and mixed herbs.

The sauce is done.

I used 250g spinach. Cut off the root and wash clean. Put spinach in boiling water for around 40 seconds. Add in 1 tsp salt. Then take spinach out and drain.

After cooled, squeeze the water out of spinach. Try to squeeze very hard. After squeezing, chop the spinach into small pieces.
Brush the pizza dough with sauce. (Remember to poke pizza dough with fork before this step). Then sprinkle spinach and bacon bits. Last, spread cheese as much as you like.

Preheat oven to 230 degree C. Bake for around 10-12 mins.

My husband loves it.