Put a saucepan over medium heat, melting your coconut oil. Sauté your garlic and ginger until lightly browned, which should take about two minutes.
Stir your curry and cumin in, sautéing until it's fragrant. This should take about two minutes. Stir in your coconut milk, allowing it to come to a boil.
Reduce your heat to low, simmering for five minutes.
Add your fish, cooking for ten minutes.
Stir in your cilantro and kale, simmering until it's wilted. This should take two minutes and serve warm.