Accidentally adding too much salt to a casserole can be frustrating, but don't worry, there are a few things you can try to reduce the saltiness. Here are some methods you can use:
Dilution: If your casserole is not too large, you can try making a second batch without salt and mix the two casseroles together. This will help to dilute the salt concentration and reduce the overall saltiness.
Increase the volume: If making a second batch is not an option, you can add some unsalted ingredients to the existing casserole to increase its volume. For example, you could add more vegetables, pasta, rice, or any other base ingredient used in the casserole.
Potatoes: Potatoes are known for their ability to absorb excess salt. Peel a few potatoes, cut them into large chunks, and add them to the casserole. Let them simmer for a while, and then remove them before serving. They should help absorb some of the excess salt.
Dairy or cream: Adding dairy products like milk, cream, or yogurt to the casserole can help neutralize the saltiness and add richness to the dish.
Acidic ingredients: Adding a splash of lemon juice or vinegar can help balance out the saltiness by providing a contrasting flavor.
Sugar: A pinch of sugar can sometimes help to counteract the saltiness and provide a more balanced taste.
More vegetables and protein: If you have enough ingredients, you can add more vegetables and protein (meat, tofu, beans) to spread out the saltiness.
When using any of these methods, be cautious not to overdo it, as you don't want to alter the taste of the casserole too much. Add these ingredients gradually, taste as you go, and adjust accordingly.
Keep in mind that while these methods can help reduce the saltiness, they might not completely eliminate it. The best approach is to be more careful with salt measurements in the future to avoid such situations.