Slow Cooker Lasagna — On a crisp autumn evening, the house filled with the warm scent of tomatoes, garlic, and bubbling cheese as the slow cooker worked its magic, turning simple ingredients into something impossibly cozy.
Introduction
Slow Cooker Lasagna has become a reader favorite because it captures all the comfort of traditional lasagna with less time standing at the stove. Picture golden leaves outside, a steaming casserole on the counter, and the ease of a recipe that practically makes itself while you sip tea and enjoy the season. If you love set-and-forget cooking, you might also enjoy this gentle slow-cooker chicken breast recipe for busy weeknights.
Why this recipe works
This Slow Cooker Lasagna layers tender noodles, a rich tomato sauce, and creamy cheese, letting low, even heat meld flavors without drying out the pasta. It’s forgiving for beginners, great for potlucks, and perfect for fall evenings when you want comfort without fuss.
Ingredients (serves 6–8)
Ingredients for this Slow Cooker Lasagna are simple and pantry-friendly:
- 9–12 no-boil lasagna noodles (or regular noodles broken to fit)
- 1 lb ground turkey
- 1 small onion, finely chopped
- 3 cloves garlic, minced
- 24 oz jar tomato sauce or marinara
- 1 can (14 oz) diced tomatoes, drained
- 1 tsp dried oregano
- 1 tsp dried basil
- Salt and black pepper to taste
- 1 1/2 cups ricotta cheese
- 2 cups shredded mozzarella (vegetarian rennet)
- 1/2 cup grated Parmesan (vegetarian rennet)
- 1 egg, lightly beaten
- 2 tbsp olive oil
- Fresh basil for garnish (optional)
For inspiration on other lasagna styles to try later, see this round-up of the best lasagna recipes.
Step-by-step instructions
- Prep the filling: Heat olive oil in a skillet over medium heat. Add chopped onion and cook until translucent, 3–4 minutes. Add garlic and cook 30 seconds. Add ground turkey, breaking it apart, and cook until no longer pink. Stir in oregano, basil, salt, and pepper. Add tomato sauce and diced tomatoes, simmer for 5 minutes to combine. Remove from heat.
- Mix the cheese layer: In a bowl, combine ricotta, half the mozzarella, Parmesan, and beaten egg until smooth.
- Assemble in the slow cooker: Lightly grease a 6–7 quart slow cooker. Spread a thin layer of meat sauce on the bottom. Add a layer of no-boil noodles (break to fit if needed). Spoon half the ricotta mixture over the noodles, then a third of the meat sauce. Repeat: noodles, remaining ricotta, and another third of sauce. Finish with a final noodle layer, the remaining meat sauce, and top with the remaining mozzarella.
- Cook: Cover and cook on LOW for 3½–4 hours or on HIGH for 2–2½ hours. Avoid lifting the lid often; steady temperature gives the best results.
- Rest and serve: Turn off the slow cooker and let the lasagna sit 15–20 minutes with the lid off to firm up. Garnish with fresh basil, slice, and serve.
If you like hearty sides, this slow day comfort meal pairs well with a simple skillet of beans like this slow-cooker pinto beans recipe.
Tips for success
- Use no-boil noodles or break regular noodles to fit; they absorb sauce as they cook. This makes the process beginner-friendly.
- Drain excess liquid from canned tomatoes to prevent a soupy lasagna.
- Avoid opening the lid frequently; every peek drops the temperature and lengthens cooking time.
- If the top needs more color, slide the lasagna under a hot oven broiler for 2–3 minutes, watching closely.
- For a richer meat sauce, brown the turkey a little longer until it develops color. For more depth, stir in a splash of red wine while simmering.
For variations on meat and sauce ideas, check these ideas from our bolognese lasagna guide.
Possible variations
- Gluten-free: Use gluten-free lasagna noodles, available in no-boil versions, or substitute thin slices of roasted eggplant between layers.
- Vegetarian: Replace ground turkey with a sautéed blend of mushrooms, zucchini, and spinach.
- Streusel topping (savory twist): Mix panko crumbs, grated Parmesan, chopped herbs, and a drizzle of olive oil; sprinkle on top in the last 30 minutes of cooking for a crunchy finish.
- Creamy greens: Swap half the ricotta for a ricotta-spinach mixture inspired by our easy creamy spinach mushroom lasagna for a greener lasagna.
Storage recommendations
- Refrigerate: Store leftovers in an airtight container for up to 4 days. Reheat individual portions in the microwave or warm slices in a covered dish in the oven at 350°F until heated through.
- Freeze: Cool completely, wrap tightly, and freeze up to 3 months. Thaw overnight in the fridge before reheating; you can reheat from frozen at 350°F, covered with foil, until warmed through (may take longer).
Conclusion
This Slow Cooker Lasagna is a fall-perfect, crowd-pleasing dinner that fills your home with incredible aroma and requires minimal hands-on time. If you want to compare techniques or try a different slow-cooker lasagna method, I recommend this thoughtful Slow Cooker Lasagna | Gimme Some Oven recipe for additional tips and variations.
Frequently Asked Questions
Q: Can I use regular lasagna noodles instead of no-boil noodles?
A: Yes. If you use regular noodles, you can either pre-cook them according to package directions or break them to fit and make sure your sauce has enough moisture so the pasta can finish cooking in the slow cooker.
Q: How do I prevent the lasagna from getting watery?
A: Drain canned tomatoes before adding, avoid excess liquid in the meat sauce, and don’t overlayer with thin sauces. Letting the lasagna rest uncovered for 15–20 minutes after cooking helps excess moisture evaporate.
Q: Can I assemble the lasagna the night before?
A: You can assemble it and store it covered in the fridge overnight. Increase cooking time slightly and check for doneness since it will start colder.
Q: Is it possible to double this recipe for a crowd?
A: You can double the ingredients using two slow cookers or cook in batches. Overfilling one slow cooker can affect cooking time and even heat distribution.
Slow Cooker Lasagna
- Total Time: 225 minutes
- Yield: 6–8 servings
- Diet: Gluten-Free
Description
A cozy, easy recipe for Slow Cooker Lasagna that captures all the comfort of traditional lasagna with less hands-on time.
Ingredients
- 9–12 no-boil lasagna noodles (or regular noodles broken to fit)
- 1 lb ground turkey
- 1 small onion, finely chopped
- 3 cloves garlic, minced
- 24 oz jar tomato sauce or marinara
- 1 can (14 oz) diced tomatoes, drained
- 1 tsp dried oregano
- 1 tsp dried basil
- Salt and black pepper to taste
- 1 1/2 cups ricotta cheese
- 2 cups shredded mozzarella (vegetarian rennet)
- 1/2 cup grated Parmesan (vegetarian rennet)
- 1 egg, lightly beaten
- 2 tbsp olive oil
- Fresh basil for garnish (optional)
Instructions
- Heat olive oil in a skillet over medium heat. Add chopped onion and cook until translucent, 3–4 minutes. Add garlic and cook 30 seconds. Add ground turkey, breaking it apart, and cook until no longer pink. Stir in oregano, basil, salt, and pepper. Add tomato sauce and diced tomatoes, simmer for 5 minutes to combine. Remove from heat.
- In a bowl, combine ricotta, half the mozzarella, Parmesan, and beaten egg until smooth.
- Lightly grease a 6–7 quart slow cooker. Spread a thin layer of meat sauce on the bottom. Add a layer of no-boil noodles (break to fit if needed). Spoon half the ricotta mixture over the noodles, then a third of the meat sauce. Repeat: noodles, remaining ricotta, and another third of sauce. Finish with a final noodle layer, the remaining meat sauce, and top with the remaining mozzarella.
- Cover and cook on LOW for 210–240 minutes or on HIGH for 120–150 minutes. Avoid lifting the lid often; steady temperature gives the best results.
- Turn off the slow cooker and let the lasagna sit 15–20 minutes with the lid off to firm up. Garnish with fresh basil, slice, and serve.
Notes
Use no-boil noodles to simplify the process. Drain excess liquid from canned tomatoes to avoid soupy lasagna.
- Prep Time: 15 minutes
- Cook Time: 210 minutes
- Category: Main Course
- Method: Slow Cooking
- Cuisine: Italian