How to Make Low Sodium Casseroles with 7 Easy Swaps

By Andrea Cohen
Published 11/29/2026
Dietitian Reviewed: Jane Schwartz, RDN, CLT

A bubbling casserole fresh out of the oven is about as cozy as dinner gets. Whether your go-to is a creamy chicken and rice dish or a pasta bake full of hearty ingredients, casseroles come together without much fuss, and there's usually enough left over for a second meal. What surprises a lot of people though is how much sodium can hide in them. Canned soups, cheese, packaged sauces, and other ready-made ingredients all add to the sodium content quickly.

Keeping an eye on that number is important for your heart, because eating too much sodium can push your blood pressure up and raise your risk of heart disease and stroke. But by learning how to make a low sodium casserole, you don’t need to say goodbye to your favorites, since a few small recipe tweaks are often all it takes to stay within your sodium goals.

How Much Sodium Should You Aim For?

Most adults should keep sodium to 2,300 milligrams a day or less, according to the U.S. Dietary Guidelines, but some people may need to go lower. For people with heart failure, advanced kidney disease, or severe or resistant hypertension (high blood pressure), a doctor may recommend a stricter limit of 1,500 milligrams. Our low sodium diet guidelines go into more detail.

7 Simple Swaps for a Lower Sodium Casserole

Try these ideas, plus the tips our dietitian shares in the video, to lower the sodium in your favorite casserole recipes. Your casserole will still be every bit as satisfying:

  • Make a homemade cream sauce. Lots of casserole recipes start with a can of cream of mushroom, cream of chicken, or cream of celery soup, and those cans tend to be packed with sodium. A from-scratch version is easy. Whisk together milk and flour with a little olive oil or unsalted butter, then flavor it with garlic, onion powder, or your favorite herbs.
  • Shop for "no salt added" cans. Canned beans, tomatoes, and vegetables often come in versions marked "no salt added" or "low sodium," so check for those first. If all you have are the regular kind, pour them into a strainer and give them a good rinse, which washes some of the sodium away.
  • Be choosy about cheese. It's one of the biggest flavor boosters in a casserole, and also one of the saltiest. Cut back on the amount, or swap in a lower-sodium type like ricotta or fresh mozzarella. Because sharp cheddar has such a bold taste, a little of it goes a long way.
  • Cook your own protein. Processed meats like sausage and ham, along with store-bought rotisserie chicken, can send the sodium in a casserole soaring. Chicken you cook yourself, lean ground turkey, and unseasoned beef are better picks. Beans or vegetables can stand in for part of the meat, too. Our Heart Healthy Chicken Casserole is a good place to start, since it’s made with shredded chicken breast you cook at home and has just 120 milligrams of sodium per serving.
  • Mix up your own seasonings. Seasoning packets for tacos and ranch, along with flavored rice mixes, are usually high in sodium. Reach for garlic, onion, paprika, pepper, oregano, and other herbs and spices to flavor the dish. For extra brightness with zero salt, finish with a squeeze of lemon juice. To see how well this works, try our Taco Casserole. It gets its flavor from a homemade blend of chili powder, cumin, smoked paprika, and other spices and has 262 milligrams of sodium per serving.
  • Pile on the vegetables. Zucchini, mushrooms, spinach, bell peppers, and broccoli are low in sodium and give you more flavor, texture, and nutrients. Swap them in for some of the saltier ingredients and your casserole will stretch into more servings, so each portion ends up with less sodium.
  • Compare labels at the store. Sodium can differ a lot from one brand to the next, even for products that seem nearly identical. Before you cook, look at a few labels on broth, sauces, cheese, and other ingredients. Picking a lower-sodium option for even one or two of them can make a real difference.

Small Changes Add Up

There's no need to overhaul a favorite recipe all at once. Pick one or two of these swaps, make the dish, and see what you think. Your taste buds get used to less salt over time, so enjoying comforting meals while keeping your sodium in check gets easier the longer you stick with it. When you're ready for something new, browse our most popular low sodium casseroles for family favorites you can put in the oven tonight.

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