This 5-ingredient slow cooker lazy lasagna is exactly what I make on busy holiday weekends like Memorial Day Eve. I can toss it together right after breakfast, snap the lid on, and then we’re free to hang out in the backyard while the slow cooker does all the work. Instead of fussing with boiling noodles and layering a traditional lasagna, we break dry lasagna noodles right into the sauce, add ricotta and mozzarella, and let it bubble away into a cozy, multi-layered, cheesy bake with a rich crimson sauce. It’s not authentic Italian nonna food—this is pure Midwest weeknight comfort with minimum effort and maximum payoff.
I like to scoop this lazy lasagna into wide bowls and serve it with a simple green salad tossed in vinaigrette to cut through the richness. Garlic bread or buttered baguette slices are perfect for catching the extra sauce around the edges. If you’re grilling for Memorial Day, this works as the main dish with grilled veggies on the side, or as a hearty side next to burgers and brats. A sprinkle of extra grated Parmesan and some crushed red pepper on the table lets everyone doctor their own bowl.
5-Ingredient Slow Cooker Lazy LasagnaServings: 6
Ingredients
24 ounces pasta sauce (about 3 cups, your favorite jarred marinara)
15 ounces ricotta cheese (whole milk or part-skim)
3 cups shredded mozzarella cheese, divided
8 to 10 dry lasagna noodles, broken into large pieces
1 pound bulk Italian sausage (mild or hot), casing removed if linked
Directions
Brown the sausage: In a large skillet over medium-high heat, cook the Italian sausage, breaking it up with a spoon, until fully browned and no pink remains, 7 to 10 minutes. Drain off excess grease if needed. This step can be done while you sip your morning coffee so it’s ready to dump into the slow cooker.
Prep the slow cooker: Lightly spray the inside of a 5- to 6-quart slow cooker with nonstick cooking spray to make cleanup easier and help the cheesy edges release. Pour about 1/2 cup of the pasta sauce into the bottom and spread it around to coat.
Mix the ricotta layer: In a medium bowl, stir together the ricotta cheese and 1 cup of the shredded mozzarella until well combined. This will be your creamy, cheesy dollop layer between the broken noodles.
Start layering with sauce and noodles: Add a thin layer of browned sausage over the sauce in the slow cooker, then scatter a layer of broken dry lasagna noodles over the top. It’s okay if they overlap or don’t cover every inch; just try to keep them mostly in a single layer so they can soften evenly in the sauce.
Add cheese and more sauce: Spoon small dollops of the ricotta–mozzarella mixture over the broken noodles, using about a third of the mixture. Pour more pasta sauce over the top, using about a third of what remains, making sure some sauce seeps between the noodle pieces so they’ll absorb moisture and cook through.
Repeat the layers: Continue layering in this order—sausage, broken dry lasagna noodles, ricotta–mozzarella dollops, then pasta sauce—until all the sausage and noodles are used up. Press down gently with the back of a spoon after each round of noodles and sauce to help everything settle into a compact, multi-layered stack.
Finish with sauce and cheese: Make sure the top layer is well-covered with the last of the pasta sauce so no dry noodles are exposed; tuck any sticking-out corners down into the sauce. Sprinkle the remaining 2 cups of shredded mozzarella evenly over the top to create a thick, glistening melted layer once cooked.
Slow cook: Cover the slow cooker with the lid and cook on LOW for 4 to 5 hours, or on HIGH for 2 1/2 to 3 hours, until the noodles are tender when pierced with a fork and the edges are bubbling vigorously. The top should look fully melted and a little golden in spots, with a rich crimson sauce peeking through around the edges.
Rest before serving: Turn off the slow cooker and let the lasagna stand, covered, for 15 to 20 minutes before serving. This rest helps the layers set up into that sliceable, slightly gelatinous, multi-layered bake instead of sliding apart.
Serve: Scoop into bowls or cut into squares, making sure to get down to the saucy, bubbling edges. Spoon any extra sauce from the sides over the top and enjoy your Memorial Day Eve feast without having spent the whole day in the kitchen.
Variations & Tips
You can tweak this 5-ingredient base to fit your family and what you have on hand, as long as you keep the spirit of the recipe: minimal prep and broken dry noodles straight into the slow cooker. For a leaner version, swap the Italian sausage for 93% lean ground turkey or chicken and season it well with extra Italian seasoning and a pinch of fennel seeds to mimic sausage flavor (this doesn’t add to the ingredient count if your sauce is already seasoned). If you prefer vegetarian, skip the sausage and use a hearty marinara with extra veggies, or add a layer of well-drained canned lentils or white beans in place of the meat; just be sure any added veggies are not too watery so the lasagna doesn’t become soupy. If you like more cheese pull, stir an extra 1/2 to 1 cup of mozzarella into the ricotta layer or sprinkle grated Parmesan on top when serving. For food safety, always cook the sausage completely before adding it to the slow cooker—no pink should remain, and it should reach an internal temperature of 160°F. Don’t add raw sausage directly into the slow cooker in this recipe because the fat and juices can make the lasagna greasy and the texture uneven. Keep the lasagna on WARM for up to 2 hours after it’s done, then refrigerate leftovers in shallow containers within 2 hours of serving. Reheat leftovers to at least 165°F before eating. If your slow cooker tends to run hot, check for doneness on the earlier side of the time range and avoid leaving it on HIGH for longer than directed so the edges don’t burn.
