Cook a homemade lasagna for dinner and you'll cut back on the salt and preservatives found in the frozen lasagnas you'll find at the grocery store. You can use whole wheat noodles and low-fat cheese to make a homemade lasagna healthier. Add plenty of vegetables to the lasagna and use a homemade tomato sauce to add more fiber and cut back on the sodium found in jarred sauce. You can use no-boil noodles, or quickly boil regular lasagna sheets before you assemble the dish.