• 1 (28-ounce) can crushed tomatoes
• 1 (6-ounce) can tomato paste
• ½ teaspoon salt
• ¼ teaspoon pepper
• 1-2 teaspoons brown sugar
• ½ teaspoon dried oregano
• ½ teaspoon dried basil
• ¼ teaspoon dried thyme
• ½ teaspoon garlic powder
• 1 teaspoon balsamic vinegar
• 2 cups cottage cheese (drain off excess liquid if there’s a lot)
• ½ cup freshly grated Parmesan cheese
• 1 teaspoon dried parsley, or a couple tablespoons fresh
• Pinch of salt and pepper
• 9-12 no-boil lasagna noodles
• 10 ounces mozzarella cheese shredded, (2-3 cups)

1. Prepare the Slow Cooker: Lightly coat the inside of a round 4- or 5-quart slow cooker with nonstick cooking spray. This step is crucial for preventing sticking and ensuring easy serving later.
2. Mix the Tomato Sauce: In a medium bowl, combine the crushed tomatoes, tomato paste, salt, pepper, brown sugar, dried oregano, dried basil, dried thyme, garlic powder, and balsamic vinegar. Whisk everything together thoroughly until well combined. This forms the rich and aromatic base of your lasagna.
3. Prepare the Cheese Mixture: In a separate bowl, stir together the cottage cheese, freshly grated Parmesan cheese, dried parsley (or fresh if using), and a pinch each of salt and pepper. Ensure the ingredients are evenly distributed. If your cottage cheese has a lot of excess liquid, gently drain some off for a firmer cheese layer.
4. First Layer Assembly: Begin by spreading about ½ cup of the prepared tomato sauce evenly across the bottom of the slow cooker. This prevents the noodles from sticking and starts the flavor base. Next, lay a double layer of no-boil lasagna noodles over the sauce, breaking them as needed to fit the round shape of your slow cooker. Don’t worry about perfect edges; they will soften and meld during cooking. Spread ⅓ of the cottage cheese mixture over the noodles. It’s perfectly fine if this layer appears a bit spotty or not overly thick. Follow with ⅓ of the remaining tomato sauce and ⅓ of the shredded mozzarella cheese.
5. Repeat Layers: Repeat the layering process (noodles, cottage cheese mixture, sauce, and mozzarella) twice more. This creates three robust layers of flavor and texture, ensuring a truly satisfying lasagna.
6. Add Water: Carefully drizzle about ⅓ cup (more or less, depending on your slow cooker and noodle brand – see notes below) of water around the edges of the lasagna. This crucial step helps create steam and ensures the no-boil noodles cook through properly, preventing a dry lasagna.
7. Cook and Rest: Cover your slow cooker and cook on the LOW setting for 4-5 hours. Cooking on low ensures an even cook and prevents the edges from drying out or burning. Once cooked, turn off the slow cooker. If your slow cooker has a removable insert, carefully transfer it to a heatproof spot or trivet. Let the lasagna rest, covered, for at least 20 minutes before serving. This resting period is vital, allowing the lasagna to set, making it easier to slice and preventing it from being too soupy. It will also be incredibly hot, so the rest allows it to cool slightly to a more enjoyable eating temperature.

No-Boil Noodles: The Secret to Simplicity: This recipe relies on no-boil lasagna noodles for ultimate convenience. However, not all brands are created equal. I’ve experimented with several: Barilla no-boil noodles often require very little, if any, extra water around the edges. Brands like Target’s whole wheat lasagna noodles or Trader Joe’s lasagna noodles tend to be thicker and benefit greatly from the addition of ¼ to ⅓ cup of water drizzled around the edges before cooking. This extra liquid helps create the steam needed to fully cook and soften the noodles. Always check the package instructions for your specific brand and adjust the water content accordingly.

Layering Technique: Double the Noodles, Double the Comfort: It might seem counterintuitive to stack lasagna noodles on top of each other, especially with no-boil varieties. However, for slow cooker lasagna, this technique is not only acceptable but recommended! A double layer ensures a substantial, hearty noodle texture that stands up well to the long cooking time. A single layer would likely become too soft, almost mushy, and largely unnoticeable in the finished dish. The double layer creates a satisfying structure and mouthfeel.

Can I Use Regular Lasagna Noodles?: While I’ve only ever used no-boil noodles for this specific slow cooker method due to their ease, you could experiment with regular lasagna noodles. If you do, I highly recommend boiling them for just a couple of minutes – enough to make them pliable but still very al dente (firm to the bite). They will continue to cook in the slow cooker, so you want to avoid overcooking them initially.

Adding Meat for a Heartier Dish: The recipe as written is for a delicious meatless lasagna, perfect for vegetarians or those seeking a lighter option. However, it’s incredibly versatile if you wish to add meat. Simply brown your preferred ground meat (ground turkey, beef, Italian sausage, or pork work wonderfully) in a skillet with a pinch of salt and pepper. For extra flavor, you can sauté some diced onion and minced garlic with the meat. Once browned, drain any excess grease thoroughly. Stir the cooked meat directly into the red sauce mixture before you begin assembling the lasagna layers. This ensures the meat is well distributed and adds a savory depth to every bite.

Cottage Cheese vs. Ricotta: My Firm Preference: This is where my strong opinion comes in! I have tried this lasagna with both cottage cheese and ricotta, and my family overwhelmingly prefers it with cottage cheese. I find that ricotta, even with extra water added around the edges, tends to dry out during the extended slow cooking process, resulting in a drier lasagna. Cottage cheese, on the other hand, contributes a wonderful creaminess and moisture that perfectly complements the long cook time. If you’re hesitant about the texture of cottage cheese, you can blend it briefly in a food processor or with an immersion blender to achieve a smoother consistency. But truthfully, after it slow cooks, the texture integrates beautifully, and you might not even notice individual curds! I am steadfast in the cottage cheese loving camp for this recipe.

Make-Ahead & Storage: You can assemble the lasagna in the slow cooker insert the night before, cover it, and refrigerate. Add the extra water just before cooking. Leftovers store well in an airtight container in the refrigerator for up to 3-4 days. Reheat individual portions in the microwave or a larger portion covered in the oven.

Freezing Instructions: This lasagna freezes wonderfully! Once cooled completely, cut it into individual portions and wrap each tightly in plastic wrap, then foil. Store in a freezer-safe bag for up to 2-3 months. Thaw overnight in the refrigerator before reheating.