5 Ingredient Lasagna Soup lands like a shortcut that still tastes like you cooked with intent. The broth turns savory and tomato-rich, the noodles soften into that familiar lasagna texture, and the ricotta on top melts into little creamy pockets as soon as it hits the bowl. It’s hearty without being heavy, and it gives you all the comfort of lasagna without the layering, baking, or long wait.
What makes this version work is restraint. Italian sausage brings the seasoning, so you don’t need a long list of spices to build flavor from scratch. A good jarred marinara does the tomato work here, and broth stretches it into a proper soup without thinning it out into something flat. The noodles go in last so they stay tender instead of turning mushy, which is the difference between a quick weeknight soup and a pot of broken pasta.
Below, I’ll show you how to keep the noodles from overcooking, which ricotta works best, and a few smart ways to adapt it if you want to make the pot a little lighter or stretch it further.
The noodles stayed pleasantly tender and the ricotta on top melted into the broth just enough. I’ve made it twice now, and the pot is always empty by the end of dinner.
Save this 5 Ingredient Lasagna Soup for the nights when you want lasagna flavor, a brothy base, and barely any cleanup.
The Trick Is Letting the Sausage Season the Whole Pot
Lasagna soup can fall flat when people try to build it like a standard tomato soup and then wonder why it tastes one-note. The sausage changes that immediately, especially if you brown it until the edges pick up color instead of stopping as soon as it loses pinkness. Those browned bits at the bottom are flavor, and they dissolve into the marinara and broth as soon as you stir them loose.
The other thing that matters is keeping the broth balanced. Too much broth and the soup turns thin; too little and the noodles drink up everything in the pot. This ratio gives you enough liquid for a generous bowl while still leaving the soup silky and spoonable, not watery.
- Italian sausage — Use the regular version if you want the fullest flavor. Mild keeps it family-friendly, while hot sausage adds more backbone without needing extra spice.
- Marinara sauce — A decent jar is enough here. You’re not hiding the sauce, so pick one you’d actually eat with pasta.
- Chicken broth — This stretches the tomato base into soup and keeps the flavor round. Vegetable broth works in a pinch, but it tastes a little lighter.
- Lasagna noodles — Break them by hand so you get rustic, uneven pieces that feel like lasagna in a bowl. Don’t add them early or they’ll turn soft and bloated.
- Ricotta — Full-fat ricotta gives you the creamiest finish. Part-skim works, but it can taste a little grainier.
Building the Bowl So the Noodles Stay Tender
Browning the Sausage Properly
Cook the sausage over medium-high heat and break it into crumbles as it cooks. You want some darker caramelized bits, not pale steamed meat, because that browned surface is what deepens the whole soup. If there’s a lot of fat in the pan, drain most of it off, but leave a little behind so the marinara has something to cling to.
Marinara Meets Broth
Pour the marinara and broth straight into the pot and stir well, scraping up the bottom as you go. The liquid should look unified, not separated into a meat layer and a red sauce layer. Bring it to a real boil before adding the noodles; if the pot isn’t hot enough, the pasta will sit there and absorb liquid unevenly.
Cooking the Noodles at the End
Add the broken noodles and keep the soup at a lively simmer, stirring now and then so they don’t stick together. Watch for tender noodles with a little bite still left in the center, because they’ll keep softening after the heat goes off. If the pot starts looking too thick before the pasta is done, add a splash of broth instead of cranking the heat higher.
Finishing With Ricotta
Ladle the soup into bowls first, then top each portion with a generous spoonful of ricotta. That keeps the cheese creamy instead of disappearing into the pot. A little mozzarella or parmesan on top works well, but the ricotta is what gives this soup the lasagna feeling.
How to Adapt It Without Losing the Lasagna Feel
Make it a little lighter
Use turkey Italian sausage instead of pork sausage. You’ll lose some richness, so keep the marinara bold and don’t skip the ricotta on top — that creamy finish makes the lighter version still feel satisfying.
Gluten-free version
Swap in your favorite gluten-free lasagna noodles and cook them just until tender. They can go soft faster than wheat pasta, so start checking a minute or two early and don’t let the soup sit on a hard boil once they’re in.
Dairy-free topping
Skip the ricotta and finish each bowl with a drizzle of olive oil and a handful of basil or dairy-free parmesan. The soup still tastes complete because the sausage and marinara are already doing most of the heavy lifting.
Stretch it for more servings
Add an extra cup of broth and another handful of broken noodles if you need to feed more people. The flavor stays balanced, but the soup turns a little looser, so season at the end after the pasta has had time to absorb some liquid.
Storage and Reheating
- Refrigerator: Store for up to 4 days. The noodles will keep absorbing broth, so expect the soup to thicken.
- Freezer: Freeze the base without noodles for the best texture. Cooked noodles turn soft after thawing, so add fresh noodles when you reheat if you can.
- Reheating: Warm it gently on the stove over medium-low heat with a splash of broth or water. Don’t boil it hard or the noodles can break apart and the sausage can turn dry.
Answers to the Questions Worth Asking
5 Ingredient Lasagna Soup
Ingredients
Equipment
Method
- Brown Italian sausage in a large pot over medium-high heat, breaking it up until no pink remains. Drain fat so the soup stays hearty but not greasy (about 5 minutes).
- Pour in marinara sauce and chicken broth, then stir to combine until fully incorporated. Scrape up any browned bits from the bottom of the pot for extra flavor.
- Bring the soup to a boil over high heat, then maintain a steady boil. Keep it at a rolling boil so the noodles cook evenly (about 2 minutes to establish).
- Add broken lasagna noodles and cook for 10-12 minutes until tender, stirring occasionally. Watch for the noodles to soften and the broth to thicken slightly.
- Taste and season with salt and pepper if needed. Add a small pinch at a time, since marinara and broth can vary in saltiness.
- Ladle into bowls and top each with a generous spoonful of ricotta. Let it sit for 1 minute so the ricotta softens into the hot soup.
- Optionally top with shredded mozzarella and fresh basil. The mozzarella will melt slightly from the hot soup for a lasagna-like finish.
