With so many flavor-packed ingredients and baked potato toppings, your baked potatoes casserole should be really flavorful. If it isn't, there are likely a couple of reasons why. First, potatoes need a lot of salt. Boil the potatoes in salted water, then taste and season them several times as you're cooking. If you season as you go, your cooked potatoes will have plenty of flavor. Another thing to consider is the fat content of the dairy products you use. If you choose low fat or fat free options, you'll struggle to get the same luxurious creaminess as when you use full fat dairy products.