Cook your spinach in a pan with a little olive oil or water, then remove excess water with a cloth or sieve.
Make the tofu ricotta: Blend extra firm tofu with apple cider vinegar, nutritional yeast, miso paste and salt until it reaches a smooth texture, similar to ricotta
Transfer the spinach to a bowl, add your tofu ricotta, olive oil and salt and pepper to taste and mix to combine well.
Spread the mixture on the puff pastry sheet, leaving some space on the sides for the borders and then fold the borders.
Bake in the oven at 200C for around 30 minutes or until golden.