Dice the potatoes and pre-cook them in steam for 10 minutes.
Slice the spring onions and set aside the green part. Halve the date tomatoes. Chop the remaining vegetables and set aside. Put the beans in a colander, rinse and drain. Mix the spices in a small bowl.
Heat some oil in a large pan and fry the potatoes all over. Add the zucchini, bell pepper, mushrooms and the white part of the spring onions and sauté for 5 minutes. Season everything with salt and pepper in between. After 5 minutes stir in the spices. Finally add the beans, the green part of the spring onions and the halved date tomatoes and heat for another 3 minutes.