Drain beans and place in blender. Add water and blend until batter forms with coarse texture.
Pour batter into a mixing bowl and fold in mushrooms, kimchi, scallions, lardons, and salt until all ingredients are well coated.
Preheat skillet on medium heat. Coat the bottom of the pan generously with oil. Ladle batter, as you would for an pancake, and cook both sides until golden brown.