In a small pot, combine the flour & nutritional yeast. Add water, tahini & the rest of the seasonings. Mix well. Over a low heat, cook slowly for 15 minutes, stirring frequently until the sauce thickens. If too thick, add more liquid. Oil an 8 X 12 inch baking dish. Pour in a layer of sauce, then a layer of sliced eggplant & a layer of onions. repeat the layering, finishing with the sauce. Sprinkle with Paprika. Bake at 350F for 30 minutes. "The Cookbook for People Who Love Animals"