Peel and then cut the zucchini in half lengthwise. Remove seeds by using a teaspoon to scrape them out. Cut the zucchini into slices ( it will look like apple slices) . Cook the zucchini in a pot with water, cooking until tender, but not mushy. Drain in a colander and let cool. When cool, add all ingredients except the butter and mix well. Pour the mixture into the prepared crust and dot with butter. Cover with the top crust or make the top crust into a lattice crust. Brush crust with milk and bake 400 degrees for 35-40 minutes or until nicely browned.