Lasagna soup brings all the comfort of the baked dish into a bowl that’s faster, looser, and a lot less fussy. The broth gets its body from jarred spaghetti sauce, so you get a tomato base with built-in seasoning instead of starting from scratch, and the broken noodles cook right in the pot until they’re tender but still hold their shape. A spoonful of ricotta and mozzarella on top melts into the hot soup and gives you that lasagna-style finish without needing an oven.
This version works because it leans on a good jarred sauce and a short ingredient list, then layers in just enough extra seasoning to keep the broth from tasting flat. The sausage gives the soup richness, but ground beef works too if that’s what you’ve got. Keep the simmer gentle once the noodles go in so they don’t turn mushy or soak up too much liquid before you get to the table.
The broth had that rich, savory tomato flavor and the noodles stayed tender without falling apart. I used spicy Italian sausage and the ricotta topping melted into every bowl just like real lasagna.
Like this lasagna soup with spaghetti sauce? Save it for the nights when you want all the lasagna comfort with a 25-minute stovetop shortcut.
The Shortcut That Keeps This Soup Tasting Like Lasagna, Not Tomato Broth
Jarred spaghetti sauce can make this kind of soup taste canned if you stop there. The fix is to build on it with browned sausage, onion, garlic, broth, and a little extra dried basil and Italian seasoning so the pot tastes layered instead of flat. That quick simmer matters because it gives the sauce time to loosen into soup and absorb the savory bits from the meat.
The noodles are the other place people run into trouble. If they cook too long, they swell up and turn the whole pot starchy. Add them only after the broth is boiling, then simmer just until they’re tender with a little bite left in the center.
What the Cheese Topping Is Doing Here
- Italian sausage or ground beef — Sausage gives the broth more built-in seasoning and a little richness, which works beautifully with the jarred sauce. Ground beef is the straightforward swap if that’s what you have. If you use beef, lean toward a sausage-style Italian seasoning blend so the soup doesn’t taste plain.
- Spaghetti sauce — This is the shortcut that gives the soup its tomato base and most of its body. Pick a brand you already like on pasta, because its flavor will carry the whole pot. If your sauce is very sweet, the broth and sausage will balance it out; if it’s very thick, the extra broth keeps the soup from becoming stew-like.
- Diced tomatoes — These add texture and a brighter tomato edge so the soup doesn’t taste one-note. Use the full can, juices and all. If you prefer a smoother broth, crush them lightly with a spoon in the pot as they warm.
- Ricotta, mozzarella, parmesan, and basil — This topping is what makes the soup feel like lasagna instead of just pasta in tomato broth. Ricotta gives the soft creamy center, mozzarella adds stretch, and parmesan sharpens the finish. Use whole-milk ricotta if you want the most luxurious texture.
Building the Pot So the Noodles Stay Firm and the Broth Stays Rich
Brown the Meat First
Cook the sausage or beef until it’s no longer pink and you see browned bits on the bottom of the pot. That color is where the deeper flavor comes from, so don’t rush this part. If there’s a lot of fat, drain off the excess before adding the onion so the soup doesn’t turn greasy.
Soften the Onion and Garlic
Add the diced onion and cook until it turns translucent and starts to smell sweet, then stir in the garlic for just a minute. Garlic burns fast in a hot pot, and burnt garlic turns bitter under tomato sauce. If the bottom of the pot looks dry, the onion moisture will loosen those browned bits as it cooks.
Let the Sauce Become Soup
Pour in the spaghetti sauce, diced tomatoes, broth, and seasonings, then bring everything to a boil before adding the noodles. The boil is important because the noodles need active heat to start cooking evenly. Once the noodles go in, lower the heat and simmer gently so the broth stays clear instead of getting cloudy and over-reduced.
Finish with the Cheese Dollop
Stir the soup only until the noodles are tender, then season with salt and pepper at the end. Mix the ricotta, mozzarella, parmesan, and basil in a bowl and spoon it over each serving instead of stirring it straight into the pot. That keeps the topping distinct, and it melts into creamy pockets instead of disappearing into the broth.
How to Adapt This for Different Pans, Diets, and Leftover Plans
Use ground beef instead of sausage
Ground beef gives you a cleaner, more straightforward tomato-beef flavor and less spice. If you go this route, the Italian seasoning matters a little more because the meat itself brings less salt and herb flavor than sausage does. It still tastes hearty, just a touch less bold.
Make it dairy-free
Skip the ricotta-mozzarella topping and finish each bowl with a drizzle of olive oil and a little extra basil. The soup itself already has plenty of body from the sausage, tomatoes, and pasta, so you don’t lose the whole dish. It won’t have that creamy lasagna finish, but the broth stays satisfying.
Make it gluten-free
Use a sturdy gluten-free lasagna noodle or another short gluten-free pasta with some bite. Cook it just until tender, since gluten-free pasta can go soft faster in broth. If you plan on leftovers, it helps to cook the pasta separately and add it to each bowl so it doesn’t break down overnight.
Storage and Reheating
- Refrigerator: Store for up to 4 days. The noodles will keep soaking up broth, so expect the soup to thicken.
- Freezer: The broth freezes well, but the noodles soften after thawing. For the best texture, freeze the soup without noodles and add fresh noodles when reheating.
- Reheating: Warm it gently on the stove over medium-low heat with a splash of broth or water. High heat can make the noodles break apart and can reduce the broth too far before the center is hot.
Answers to the Questions Worth Asking
Lasagna Soup With Spaghetti Sauce
Ingredients
Equipment
Method
- Brown the Italian sausage or ground beef in a large pot over medium-high heat, then drain excess fat.
- Sauté the diced onion for 3 minutes over medium heat, then add the minced garlic and cook for 1 minute.
- Pour in spaghetti sauce, diced tomatoes, and beef or chicken broth, then stir in Italian seasoning, dried basil, and red pepper flakes until combined.
- Bring the soup to a boil over high heat, then add the broken lasagna noodles.
- Simmer for 10-12 minutes over medium-low heat, stirring occasionally, until the noodles are tender and the soup looks thickened.
- Season the soup with salt and pepper to taste, stirring until evenly flavored.
- Mix ricotta, shredded mozzarella, parmesan, and fresh basil to form a creamy dollop.
- Ladle soup into bowls and top each serving with a generous spoonful of the cheese dollop.
