You have three solid options, and they’re all good. Option A: Keep the contents for making a killer gravy or stock. The neck, heart, and gizzard add deep, savory flavor. Simmer them in water with an onion and a bay leaf for 30 minutes.
Option B: Toss the whole bag in the trash. This is 100% acceptable. Not everyone wants to cook with organ meats, and your turkey will still be delicious.
Removing the Giblets - Champoeg Farm
Option C: If you have a dog or cat, some vets say a plain, cooked gizzard or heart makes a high-value training treat. Never feed them raw or the liver, which can be too rich.