Place quinoa and water in a small pot and bring to a boil. Reduce heat, and simmer for 15 minutes, until all liquid is absorbed. Remove from heat and allow to sit.
Meanwhile, heat olive oil in a skillet over medium heat. Add garlic and onion and sauté 5 minutes, until fragrant. Add in veggies, turmeric, and salt, and sauté another 5 minutes until softened. Remove from heat.
Preheat oven to 375 degrees F. Line a baking sheet with parchment paper.
In a large bowl, stir together the quinoa, sautéed veggies mixture, flax eggs, and flour until the mixture sticks together nicely. Form into 8 patties, and place on the lined baking sheet.* Bake 25-30 minutes, until golden.
For the sauce, simply whisk all ingredients together until smooth and creamy. Drizzle over the cakes and enjoy!