Preheat oven to 375 degrees F CONVECTION or 400 degrees F.
Mix dry ingredients together well in a small bowl.
Place shredded zucchini and defrosted corn into a large bowl.
Add in the dry mixture plus 1/4 cup of the soy milk. Mix with a large spoon. If needed keep adding small amounts of soy milk to incorporate the dry ingredients with the wet--just until a thick batter is formed.
Scoop 2 tablespoons of batter onto parchment paper-lined baking sheet and flatten into patties with a spoon. Continue until all batter is used.
Bake for 30 minutes, then check to see if you can easily flip the patties over with a small metal spatula. If they are stills ticky, bake them 5-10 minutes more. Once you are able to easily flip them, bake another 10-15 minutes until golden brown and firm. Time will vary based on the moisture in your batter.
Serve warm garnished with chopped green onions and dressing to dip them in.