Combine the flour, salt and baking powder in a medium bowl.
In a separate bowl, combine 1/3 cup olive oil and warm water. Gently pour the oil mixture into the flour mixture and mix with a knife until just combined. Leave to rest in the fridge for at least half an hour.
While that is resting, make your filling. Separate leaves and stems from the silverbeet and thinly slice. Finely chop a bunch of parsley. Heat 2 tbsp extra virgin olive oil on medium heat. Sauté silverbeet stems and parsley until just soft (5 minutes), then add silverbeet leaves and a decent pinch of salt. Cover and cook until wilted, stirring occasionally (3 minutes). Remove from heat. Stir though a splash of white vinegar at the end. Check seasoning to taste.
For the ricotta, mix ricotta with goat cheese and lots of pepper.
Preheat oven to 220C with a baking tray in the oven that you’ll use to cook on. You want to get it hot so the pastry gets crispy on the bottom.
Once pastry has rested, divide into two (you can use the other half another day to make a caramelized onion tart with potato and anchovy, that’s what I did. It also freezes well).
Place the pastry in between two sheets of baking paper and roll out until it’s thin and the same size as your baking tray.
Evenly spread ricotta mixture on pastry, then sprinkle with cooked silverbeet. Transfer to hot tray and cook until golden and crispy, about 15 minutes.
Normally I would’ve added a few more things to this — garlic, lemon zest, chili flake, Parmesan, etc. But I just used what I had at hand. I think I prefer it this way, it lets the simple ingredients speak for themselves, without getting distracted. Enforced resourcefulness.