In a non-stick frying pan, wilt the spinach and set it aside to cool. Once it is cool, chop it into fine pieces.
In a large mixing bowl, whisk together the cream cheese and yoghurt until smooth and well combined. Crumble the feta over the cream cheese and yoghurt and whisk in. Add in the finely chopped spinach, lemon juice, pepper and mix until well combined.
Place in a bowl of choice and serve with crackers, chips, and julienned vegetables.
All temperatures stated are for conventional ovens. Decrease the temperature by 20°C/25°F or gas mark 1 for "fan" or air-fryers.
Notes
I suggest using good cream cheese, in New Zealand, I always opt for Philadelphia cream cheese. My favourite Greek yoghurt's in New Zealand are Meadow Fresh and Kalo. If you are using fresh garlic and want to mute it a bit, add a splash of olive oil and cook up the minced or crushed garlic with the spinach.