Drain fish; put in a bowl. Stir in 1 of the scallions, breadcrumbs and curry. Form 4 patties. Heat oil in a medium pan over medium heat. Cook patties until light brown, about 4 minutes; flip; cook 3 minutes more. Serve over rice. Dipping sauce: Mix soy sauce, ginger and remaining 1/2 scallion.
Heat oil in a large pan over medium heat. Sauté garlic until just browned, about 1 minute. Add spinach; cook until wilted, about 4 minutes.