Preheat the oven according to the instructions on the packet. Put a baking tray in the oven to heat up for 5 minutes. Tip the frozen potatoes onto the tray and roast for 30-40 minutes until golden or according to the timings on the packet.
Brush the oil all over the courgette, carrots and cauliflower pieces and season well then sprinkle a little ground coriander over them, too. Put on a separate tray and after 15 minutes of roasting the potatoes, roast the vegetables for around 20 minutes. Keep an eye on them to make sure they’re all cooking evenly.
Put the pepper, feta, oil, vinegar and ground coriander into a mini food processor and whiz until smooth. Season well, then whiz again. Spoon the dip into a pot and add the almonds and parsley.
Arrange the roast potatoes and vegetables on a platter (or divide between two plates) and serve with the red pepper dip.