Instructions: Soak the soybeans in 4 cups water overnight. Rinse, bring beans to boil in 6 cups water. Reduce heat, and simmer for 3 hours.

Preheat oven to 375F. Spray baking pans with cooking spray. Place chestnuts and next 5 ingredients in food processor. Pulse just to mix.

Whisk egg replacer powder with 2/3 cup water until foamy. Add to processor along with soybeans, and pulse,just to mix. Do not puree. Scrape mixture into a large bowl, and add rice. Mix well. Add mustard, bread crumbs, and yeast; mix thoroughly. Form into burgers.

Place burgers on baking pans; bake for 25 minutes. Spray top of burgers lightly with cooking spray, then brown under broiler. You may also panfry these burgers if youd like.

NOTES : If you dont have the powdered egg replacer, you could use 6 egg whites, slightly beaten. As for the chestnuts, there is no way Id try to peel them, so Id just buy them in a jar. :-) And, frankly, you could easily omit the nutritional yeast, or sub parmesan cheese for it.

Per burger:

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