Can I use rotisserie chicken?
Yes, and it is a weeknight lifesaver. Use about 3 to 4 cups shredded or chopped rotisserie chicken. Add it at the end so it warms through without drying out.
How do I keep the bottom from getting soggy?
Three big wins: use a preheated baking sheet on a lower rack, cool the filling for 10 to 15 minutes before adding crust, and make sure the filling is thick (not soupy) before you assemble. Vents help steam escape and keep the top crust crisp, but the lower-rack heat is what really helps the bottom.
Extra insurance for double-crust pies: Blind bake the bottom crust at 400°F for 8 to 10 minutes (line with parchment, fill with pie weights or dried beans), then add the filling and continue with the recipe.
Can I make this with only a top crust?
Absolutely. A top-only crust is easier and still delivers the flaky payoff. If you do a double crust, keep the bottom crust cold and work quickly.
What vegetables can I swap in?
Use what you have: mushrooms, corn, chopped green beans, parsnips, or diced potatoes work great. Just keep the total volume about the same so the filling stays creamy, not dry.
My filling is too thick. How do I fix it?
Whisk in warm chicken stock, a splash at a time, until it is glossy and spoonable. Taste and adjust salt after thinning.
My filling is too thin. What now?
Simmer it uncovered for a few minutes to reduce. If it still needs help, mix 1 tablespoon cornstarch with 1 tablespoon cold water, stir it in, and simmer until thickened.