1: Elevate your potato casserole with these top 5 secret ingredients.

2: Boost flavor with Parmesan cheese for a tasty twist on a classic dish.

3: Add depth with chopped bacon for a savory and satisfying crunch.

4: Incorporate sour cream for a creamy and rich texture in every bite.

5: Enhance the dish with caramelized onions for a sweet and savory balance.

6: Sprinkle breadcrumbs on top for a crispy and golden brown finish.

7: Try adding fresh herbs like thyme or rosemary for a fragrant infusion.

8: Experiment with different cheeses like Gruyere or cheddar for unique flavors.

9: These secret ingredients will take your classic potato casserole to the next level.