In a sauce pan, cook onion in butter until tender. Stir in flour, salt, sage and pepper. Add water, milk and chicken bouillon all at once. Cook and stir until thickened and bubbly. Cook and stir 1 to 2 minutes more.
Stir in drained vegetables, chicken, and parsley; heat until bubbly and add a teaspoon of lemon.
Turn chicken mixture into a pie shell or ramekin lined with pastry, cover with top pastry or a cutout.
Bake @ 450 for 10 to 12 minutes or until crust is golden brown.
*Nutritional information is a calculated guesstimate. Please note that this can change with different brands and modifications you may make to the recipe. For the most accurate information, use a nutritional calculator with the exact brands and measurements you're using with each recipe.