Dump yogurt into bowl; mix with maple syrup and vanilla, add more to taste; throw flax seeds, walnuts, and banana pieces in, mix well and enjoy! I eat this every morning now- so satisfying...
I like mine straight up, but try adding sprinkles of ginger, or cinnamon, etc.
Really, you could use any soy yogurt you want, but this way you can control the flavor more (a lot of soy yogurts are really sweet, or just nasty!) plus you can get plain soy yogurt in bigger containers (less packaging) or make your own.