Yes, salt makes everything taste better, but it is a major culprit in high blood pressure, heart disease and stroke.
To cut the salt intake without cutting the taste of food, avoid adding salt while preparing the dish. Salt added sparingly just before eating maximizes its effect. And try adding other herbs and spices to flavor a dish so that less salt is needed.
When using canned foods, make sure to buy low sodium versions. That gives you more control over the amount of salt in your cooking.
Instead of using tomato sauce, which adds not only extra sodium, but often other unhealthy ingredients, buy no salt added canned tomatoes and puree them in a blender or food processor. The more control you have over what is added to your food, the healthier you can make it.