It has happened to all of us. You got to heavy handed with the salt in your spaghetti sauce. When that happens you have a few options. Here are some tips that I have learned over the years to lessen the saltiness in tomato sauce. Add more liquid: This will dilute the sauce and help to reduce the saltiness. You can add water or unsalted broth to the sauce until you reach your desired taste. Add acid: Adding an acidic ingredient like vinegar or lemon juice to your sauce can help balance out the saltiness by counteracting it with tartness. Add sweetness: Adding a sweet ingredient like sugar or honey can also help balance out the saltiness in your sauce. Add more pasta: If you’ve made too much sauce and it’s too salty, adding more pasta will increase the overall volume of food and dilute the saltiness that way. Make another batch without salt and mix them together: If all else fails, you can make another batch of spaghetti sauce without adding any salt and mix it with the original batch. Remember, when adjusting seasoning in a recipe, always do so gradually, tasting as you go until the desired flavor is reached.