Step 1 Put Herby onion and butter bean mix* into a pan with cumin and heat gently for 1-2 minutes until fragrant. Tip into a bowl and roughly mash together with lemon zest and juice, courgette and breadcrumbs. Dust hands with flour, then shape mixture into 8 patties. Press lightly to flatten.
Step 2 Heat half the oil in a large frying pan. Add patties and cook for 3-4 minutes until golden. Turn patties, add remaining oil, then cook for a further 3-4 minutes until heated through and golden.
Step 3 Meanwhile, put yoghurt into a bowl with parsley and cucumber. Mix well. Spoon into pitas. Top with patties, sliced tomato and salad leaves.
*Herby onion and butter bean mix
Heat olive oil in a large pan. Add onion, pumpkin seeds and thyme. Cook gently for 15 minutes, stirring, until onion is soft. Add butter beans. Mix well and season with salt and pepper.
You can also use this mix as a base in these recipes:
Citrus hummus pasta with butter beans and spinach
Butter bean and apricot-stuffed chicken
Crushed butter beans and peas with salmon