Slice the avocado. Peel 1 ½ orange and 1 grapefruit and cut them into round slices or wedges.
In a small bowl add the juice of ½ an orange, the honey, the grated ginger and the table salt. Mix until incorporated.
In a salad bowl add the spinach, citrus fruits, avocado, torn basil leaves, and crumbled low fat feta cheese. Drizzle over the vinaigrette and fold everything over. Sprinkle generously some flaky salt and black pepper over the salad and serve with toast