Preheat the oven to 350°F. Spray a glass or metal baking dish with nonstick cooking spray.

In the prepared baking dish, combine rolled oats, crystallized ginger, coconut, walnuts, pumpkin seeds, flaxseed, and ground cinnamon. Toast for about 10 minutes.

Meanwhile, in a small bowl, combine almond butter, salt (if using), honey, and water.

Remove the baking dish from the oven, and mix in almond butter mixture using a spatula. Flatten granola into an even layer.

Bake for about 20 minutes. Let cool, and slice into bars or break into clusters.