Preheat Oven To 375*. Soak Bread In Milk 5 Minutes. Blanche Zucchini In Boiling Stock 5 Minutes. Remove Zucchini, Reduce Stock To 1/2 Cup, Then Add To Bread Mixture. Saute Onion And Garlic In Oil. Add Bread Mixture, Zucchini, Eggs, 1/2 Cheese, Salt And Pepper. Simmer 5 Minutes. Spread Into Buttered Baking Dish. Sprinkle With Remaining Cheese And Bread Crumbs, Bake 30 Minutes.