In large bowl, mash the chickpeas well, using a potato masher or a firm fork; it takes about 2 minutes to get the right consistency. Add vegetables and mix well. Add the bread crumbs and mix, then add the oil and mix again. Finally, add teh vegetable broth and salt, mix one last time. Transfer all ingredients to a 9 x 13 casserole dish (glass or ceramic is best). Press the mixture firmly into the casserole. Cover with foil, bake 45 minutes. Uncover and bake for 15 more minutes. Serve it hot the day you cook it, but it tastes good cold as well.