1. Grease two 8-oz. gratin dishes with butter. To each dish, add spinach. Using your fingers, make 2 wells in each pile of spinach and crack eggs into each dish.
2.Cut tomato into wedges and nestle wedges on opposite sides of each dish. Pour heavy cream into each dish. Add half of the bacon to each dish.
3. Sprinkle each dish with parmesan, thyme, nutmeg, and salt and pepper to taste.
4. Transfer to oven rack and broil until the cheese is golden brown, the whites of the eggs are set, and the yolks are still slightly soft, about 5 minutes.
