Preheat oven to 200℃. Roast the tomatoes for 30-40 minutes. Once roasted, optionally lightly char the skins with a kitchen torch.
Meanwhile, heat the oil over medium heat in a large oven-safe frying pan. Sauté the onion until soft (5 minutes).
Add the garlic, pepper, kale, oregano, dill & salt. Continue to cook until the kale is wilted, around 5 minutes.
Add the tomato puree and cook for another 1-2 minutes.
Add the roasted tomatoes, orzo, chickpeas and stock. Bring to a simmer, then bake in the oven for 10-15 minutes.
Crumble over the feta to serve.