Preheat the oven to 200C/400F. Cut the peppers in half through the stalks and scoop out the sides and any white membrane. Place the peppers cut side up on a baking sheet, drizzle with ½ tablespoon of the oil and bake for 20-25 minutes, until the peppers are just tender.

Meanwhile, heat the remaining tbsp. of oil in a large frying pan over medium heat. Add the onion and cashews and cook, stirring, for approx. 5 minutes, or until the cashews are beginning to brown and the onion is translucent. Add the garlic, herbs and sundried tomatoes (if using) and cook for a further minute. Add the kale and water and cook for another 2 minutes. Finally, stir through the cooked quinoa and lentils and season to taste.

Carefully spoon the filling mixture into the pepper halves and return to the oven for 10 minutes.

Serve warm with a green salad.