This one pot lasagna soup has all the classic flavors of lasagna but in soup form! It's loaded with ground beef, Italian sausage, spinach, and Mafalda pasta in a rich tomato broth, then topped with ricotta cheese!
Heat the olive oil in a large pot over medium high heat. Then add in the onion, garlic, and red pepper flakes. Cook until translucent and aromatic, about 5 minutes.
If needed, remove the casing from the Italian sausage and discard. Then add the sausage and ground beef to the pot along with the onions. Cook, stirring occasionally, until the meat is browned. Drain off any excess fat.
Then stir in the thyme, oregano, salt, pepper, and tomato paste and cook for another 2-3 minutes.
Pour in the stock to deglaze the pan, making sure to scrape up any browned bits on the bottom of the pot!
Then stir in the crushed tomatoes and bay leaves and bring to a boil. Reduce the heat to a simmer and then add in the Mafalda pasta.
Simmer for about 10-minutes, or until the noodles are fully cooked.
Turn off the heat and stir in the spinach, basil, and parmesan cheese. The residual heat will wilt the spinach. Then taste and adjust seasonings as desired.
To serve, garnish the lasagna soup with a dollop of ricotta cheese and/or a sprinkle of parmesan!
If you only plan on eating a small amount of the soup right away, you can cook the noodles separately and just add a scoop to each bowl!
Notes
Store the soup in the fridge for up to 5 days.The noodles will soak up the broth in the fridge, so you have two options. You can strain out the broth and store it separately, then just recombine before reheating. Or instead of cooking the noodles in the soup, you can cook them separately and just add a scoop to each portion before serving.