Here are the 10 oddest ingredients people put in their stuffing. Whether you call it stuffing or dressing, Americans traditionally prepare a filling to put inside of their holiday turkeys. 1. Pepperonis & Mozzarella. 2. Fruit. 3. Stale Bagels. 4. Sticky Rice. 5. Corn Chips. 6. Plantains. 7. Oysters. 8. Popcorn. 9. Twinkies. 10. Burgers. What weird ingredient do you put in your stuffing?