Put a slice of cheese in each of 6 shallow ovenproof plates. Preheat the oven to 400 F. Squeeze the spinach dry and place in a round crown shape on the cheese. Divide the cubed bread between the plates. Bake for 10 minutes. Remove the plates from the oven and break an egg into the middle of each crown. Sprinkle with salt and pepper and a pinch of curry powder and a few tarragon leaves. Bake in the oven until the eggs are cooked.
