Put the peas in a colander and run under the hot tap to defrost. Drain well, then put half into a food processor. Add the chickpeas, flour, garlic, cumin seeds, peanut butter or tahini, parsley, lemon zest and plenty of seasoning. Whizz the ingredients to a paste, adding a splash of water if it looks too crumbly. Using wet hands, shape the mixture into 8 patties, dust with flour, then place on a plate and chill for 10 mins, or longer if you have time. Boil the kettle

Place the couscous in a large bowl, season, then pour over enough boiling water to just cover. Set aside for 5 mins.

Heat 2 tbsp oil in a large pan. Cook the falafels for 2-3 mins on each side, until crisp and golden – you may have to do this in batches, so keep them warm in a low oven while you do. Add the remaining oil, lemon juice, mint, tomatoes and peas to the couscous. Serve the salad and falafels with a dollop of yogurt.