Fill the pie shell with the cheese and flour mixture.

This should be covered evenly with ham.

Milk, salt, mustard, and eggs should be combined.

Pour over cheese and ham evenly and beat until smooth.

The custard should be set after 45 minutes of baking at 375 degrees.

Sprinkle chopped parsley on top and serve warm.

Using saran wrap and foil to wrap well, freeze the recipe after step 4.

Thaw overnight in the fridge; bake according to package directions.