RICE CRUST: Combine all the ingredients and mix together until well-combined. If the crust does not hold together, add a little extra tahini and cornflour. Pat into the base and sides of a well-oiled pie dish. (No size was included in the recipe, but judging from other recipes, my guess is a 10" pie dish.) Bake in a moderate oven for 10-15 minutes until lightly golden.
FILLING: Cut the pumpkins in half lengthwise and bake, cut-side down in a hot oven for 30 minutes, or until very soft when tested with a skewer. (I'd have them in the oven while the crust was cooking, then once the rice crust has been removed from the oven, I'd increase the heat for maybe 10 minutes.).
Allow the pumpkin halves to cool and when they are cool enough to handle, scoop out the insides, discarding the seeds, and puree the pulp in a blender. If adding ricotta or tofu, add it while pureeing the pumpkin; it will make for a firmer texture.
Heat the oil in a large pan, preferably non-stick, and sauté the leeks and garlic for 2-3 minutes, add the spices and stir over a moderate heat for 1-2 minutes, taking care that the contents of the pan do not burn.
Carefully add the zucchini, celery and peas and the hot vegetable stock or hot water, stirring to ensure that the spices are absorbed and combined with all the other ingredients. Simmer until the water or vegetable stock has evaporated.
Dissolve the arrowroot (or kuzi) in the cold water and stir this into the vegetable mixture, add the tamari and simmer for about 1 minute.
Pour the vegetable mixture over the rice crust and spread the pumpkin puree over the top of this.
Bake in a moderate oven for 20-25 minutes.
SERVING SUGGESTIONS: Decorate the pie with thin slices of apple, and lightly sprinkle with cinnamon or nutmeg and heat for an additional 5 minutes.
Allow the pie to stand for 5 minutes before serving.
Serve with a green salad with nuts and sunflower seeds and cubes of tofu marinated in tamari.
NOTES: When stock is required in a recipe, I use my Vegetable Stock Vegetable Stock or Chef Kate's Roasted Vegetable Stock Roasted Vegetable Stock . Tahini is made from ground sesame seeds and is used as both for its binding qualities and for flavouring; it is rich in minerals, calcium, magnesium, phosphorus and iron. Tahini is an ingredient in most hummus recipes. Tamari is pure, top quality soy sauce, and is free from chemicals and preservatives. It can be used for flavouring in place of added salt or stock cubes in soups, vegetable dishes, pies, casseroles and dressings. Tahini and tamari are available at health food stores and large supermarkets.
