Introduction
Forget babysitting a hot oven and endless pots—this Crockpot Lasagna brings all the classic comfort to your table with the ultimate hands-off approach. You simply layer the ingredients and let your slow cooker do all the work, resulting in a perfectly melty, deeply flavorful meal. It’s the ideal solution for feeding a crowd on a busy day without sacrificing an ounce of that traditional lasagna taste.
Prep & Cook Time
- Prep Time: 10 minutes
- Cook Time: 180 minutes (3 hours)
- Total Time: 3 hours 10 minutes
- Servings: 15
Ingredients
- ½ lb lasagna noodles (regular or oven-ready, uncooked)
- 1 lb Italian sausage (bulk, or links with casings removed)
- ½ lb ground beef
- 1 cup onion (chopped, about 1 large onion)
- 2 cloves garlic (minced)
- 28 oz can of tomatoes (cut up, undrained)
- 12 oz can of tomato paste
- 2 teaspoon sugar
- 2 teaspoon salt
- 1 ½ teaspoon dried basil leaves
- ⅕ teaspoon fennel seed
- ¼ teaspoon coarse black pepper
- 15 oz ricotta cheese
- 1 large egg (beaten)
- 1 tablespoon dried parsley flakes (or 2 teaspoon fresh minced parsley)
- ½ teaspoon salt
- ½ teaspoon coarse black pepper
- 4 cups shredded mozzarella cheese
- ¾ cup Parmesan cheese
Instructions
- In a large skillet over medium-high heat, cook the Italian sausage, ground beef, onion, and garlic until the meat is browned and the onion is tender. Drain any excess fat.
- Stir in the undrained tomatoes, tomato paste, sugar, 2 teaspoons salt, dried basil, fennel seed, and ¼ teaspoon coarse black pepper. Bring to a simmer, then remove from heat.
- In a medium bowl, combine the ricotta cheese, beaten egg, parsley flakes, ½ teaspoon salt, and ½ teaspoon coarse black pepper.
- Lightly grease the insert of a 6-quart or larger slow cooker.
- To assemble, spread about 1 ½ cups of the meat sauce onto the bottom of the slow cooker. Arrange a layer of uncooked lasagna noodles over the sauce, breaking them to fit as needed.
- Spread with half of the ricotta mixture. Sprinkle with 1 ⅓ cups of the mozzarella cheese and ¼ cup of the Parmesan cheese. Spoon about 1 ½ cups of meat sauce over the cheeses.
- Repeat the layers: noodles, the remaining ricotta mixture, 1 ⅓ cups mozzarella, ¼ cup Parmesan, and another 1 ½ cups meat sauce.
- Top with a final layer of noodles and the remaining meat sauce.
- Cover and cook on LOW for 3 hours. In the last 10 minutes of cooking, sprinkle the remaining mozzarella and Parmesan cheeses over the top, cover again, and let melt.
- Once cooking is complete, turn off the slow cooker and let the lasagna stand, uncovered, for 15-20 minutes before serving. This allows it to set for cleaner slices.
Variations
- Vegetable Boost: Add a layer of thinly sliced zucchini, spinach, or mushrooms between the cheese and sauce layers for extra veggies.
- No-Prep Noodles: Use oven-ready lasagna noodles for guaranteed no-stick, no-boil convenience.
- Meatless Option: Omit the sausage and beef, replacing them with a mixture of sautéed mushrooms, bell peppers, and lentils for a hearty vegetarian version.
- Individual Servings: Layer the ingredients in small, greased oven-safe dishes that fit inside your slow cooker. Stack them carefully and cook as directed.
Tips for Success
- Letting the lasagna rest after cooking is crucial; it firms up and makes serving much easier.
- If using regular (not oven-ready) noodles, ensure they are fully covered with sauce to prevent hard, uncooked edges.
- A slow cooker liner can make cleanup incredibly fast and easy.
Storage & Reheating
Store cooled leftovers in an airtight container in the refrigerator for up to 4 days. To reheat, place individual portions in the microwave or warm larger portions, covered with foil, in a 350°F oven until heated through. You can also freeze portions for up to 3 months.
FAQ
Can I use all ground beef instead of the sausage/beef mix?
Yes, you can use 1.5 lbs of ground beef. The flavor will be less complex, but still delicious.
Do I need to boil the noodles first?
No, the noodles cook directly in the slow cooker with the sauce. Just use them uncooked as directed.
Can I assemble this ahead of time?
Yes, you can assemble the lasagna in the slow cooker insert the night before, cover, and refrigerate. Let it sit at room temperature for 20-30 minutes before starting the 3-hour cook time.
My slow cooker runs hot. What should I do?
If you know your appliance runs hot, check the lasagna at the 2.5-hour mark. The edges should be bubbling and a knife should easily pierce the noodles.
Why is there sugar in the sauce?
The sugar helps balance the acidity of the tomatoes, creating a more rounded, rich flavor.
Can I use fresh herbs instead of dried?
Absolutely. For the basil, use about 1 ½ tablespoons chopped fresh basil added at the end of the sauce simmering time. For the parsley in the ricotta, use 2 teaspoons fresh minced.

