Place the ground beef in a sauté pan over medium heat.
Cook the ground beef, stirring occasionally, until browned.
In a large soup pot, add the onion soup mix, tomato sauce, frozen vegetables, chicken broth, water, celery, onion, and elbow macaroni.
Stir the ingredients together until combined.
Bring the soup to a boil over medium-high heat.
Once boiling, reduce the heat to low and simmer until the macaroni is tender.
Add the browned ground beef to the soup pot.
Stir well to mix the ground beef into the soup.
Ladle the soup into bowls and serve warm.
Notes
How to Store and Reheat
Storing
Once the soup has cooled completely, transfer it to an airtight container and store it in the refrigerator. It will stay fresh for up to 3 days, making it perfect for meal prep or leftovers.
Reheating
Reheat the soup on the stove over medium heat, stirring occasionally, until it’s warmed through. Alternatively, you can use a microwave—just heat it in a microwave-safe bowl, stirring halfway through, until it’s evenly hot.
Freezing
To freeze, let the soup cool completely and portion it into freezer-safe containers or bags. It will keep well in the freezer for up to 3 months. When ready to enjoy, thaw it overnight in the refrigerator before reheating.