To create apple pie filling easily, mix sugar, flour, cinnamon, nutmeg and thinly sliced apples together until the other ingredients fully coat the apples. Substitute brown sugar for sugar for a more robust flavor, and add nutmeg and lemon juice to help draw out the tastes of the other ingredients.
Paula Deen offers an easy apple pie filling on the Food Network website that uses 3/4 cup of brown sugar, 1/4 cup of flour, seven cored, peeled and sliced medium apples, the zest and juice of a single lemon, 3/4 teaspoon of cinnamon and nutmeg to taste. Mix all of the ingredients except for the apples and lemon juice together in one bowl, then toss the apples with the lemon juice and stir in the mixture to create an even coating for apple pie filling.
Pillsbury suggests a similar recipe using 6 cups of apples sliced thin, 3/4 cup of sugar, 3/4 teaspoon of cinnamon, 1/4 teaspoon salt, 2 tablespoons of flour, 1/8 teaspoon of ground nutmeg and a single tablespoon of lemon juice. The process for mixing these is the same as the Paula Deen recipe. Toss the apple slices with the lemon juice, and stir in a mixture of the other ingredients.