Fill a large bowl halfway with water and add the lemon juice. Add the apples to the lemon water as they are sliced.
2 tbsp lemon juice, 6 apples
Preheat oven to 350 degrees F. Coat a square baking dish with cooking spray and set aside. In a small bowl, combine the brown sugar, cinnamon, nutmeg and butter. Mix well.
1/2 cup brown sugar, 2 tsp cinnamon, 1 tsp nutmeg, 4 tbsp butter
Remove the apples from the water and pat dry. Place the apples in a single layer inside the prepared baking dish. Top with the sugar mixture and spread as evenly as possible.
Bake uncovered in the preheated oven for 30 minutes. Serve immediately, either with vanilla ice cream or as a solo dessert.