Bring leftovers to room temperature and store in air-tight containers and freeze. Then, defrost in the refrigerator overnight. Check in the morning to see if you need to leave it out longer at room temperature.
*I used a doctored-up version of Hunts Garlic & Herb Pasta Sauce in a can. I added browned ground beef and sautéed onion and garlic.
**The above Hunt's sauce is not soy-free.
***My husband enjoys lots of sauce. So, I added an additional 1/4 cup of water, 1-1/4 cups total. The amount of water needed will depend upon how long you cook the noodles and how high the heat on your stove is. The higher the heat and the longer you cook the noodles and sauce, the more the liquid will evaporate.
https://glutenfreerecipebox.com/gluten-free-skillet-lasagna/