Preheat oven 180°C
Line a baking tray with foil and add the chopped peppers before coating with olive oil and cook in oven for 30 minutes, or until fully roasted.
Next, using a hand blender or food processor coarsely blend the roasted peppers, walnuts, garlic, tomato puree, honey, paprika and red wine vinegar.
Once blended, stir the extra virgin olive oil into the romesco. Add salt & pepper.
In a large saucepan, add the gnocchi and cavolo nero to salted boiling water and cook according to the packet instructions time, minus 1 minute. Drain the gnocchi and greens, reserving some of the starchy water and pop back into the pan.
Add the romesco sauce with a couple of ladles of the reserved pasta water. Cook until the romesco sauce and pasta water become a smooth/thick emulsion and the gnocchi is fully cooked.
Serve with a sprinkle of feta, an optional drizzle of honey and chopped fresh parsley. For additional texture/crunch, I added an extra sprinkle of chopped walnuts.