Name: Slow Cooker Ravioli Lasagna Recipe
Prep time: 20 min
Cook time: 4 h
Total time: 4 h 20 min
Cuisine: Italian-American
Ingredients: 1 lb. ground beef (can substitute mild sausage); 1 cup white onion, diced; 1/2 tsp. salt; 1/4 tsp. pepper; 1/4 tsp. garlic powder; 1/2 tsp. dried leaf oregano (not ground); 25 oz. frozen ravioli (5 cheese recommended, keep frozen); 24 oz. marinara sauce (Rao’s preferred); 8 oz. shredded mozzarella cheese (about 2 cups); Non-stick cooking spray for slow cooker

Jump to Recipe· 4.3 from 12 reviews

If you’ve ever dreamed of combining the cozy layers of lasagna with the ease of a slow cooker, then you are going to absolutely adore this Slow Cooker Ravioli Lasagna Recipe. It’s everything you love about a classic Italian dinner reinvented into a fuss-free, layered casserole that cooks itself to cheesy, saucy perfection. Whether you’re new to slow cooking or a seasoned pro, this dish delivers comforting richness, melty mozzarella, and that perfect savory balance that will have everyone asking for seconds.

Ingredients You’ll Need

The image shows a black oval slow cooker filled with layers of food, starting with a bottom layer of red sauce, followed by a layer of cooked ground meat, and topped with a single layer of square-shaped ravioli with crimped edges, arranged closely together to cover the whole surface. In the bottom left corner, part of a white bowl filled with shredded white cheese is visible. The slow cooker is placed on a white marbled surface. photo taken with an iphone --ar 4:5 --v 7

The beauty of this Slow Cooker Ravioli Lasagna Recipe lies in its simplicity and how each ingredient brings something special to the table. From the savory ground beef to the creamy mozzarella, every component works together to create layers of flavor and texture you’ll crave.

Frozen ravioli (25 oz, DO NOT THAW): Using frozen ravioli keeps the layers tender and perfectly cooked by the time the slow cooker finishes.
Ground beef (1 lb): Adds hearty richness; you can swap for mild sausage for a different twist.
White onion (1 cup, diced): Brings a subtle sweetness and complexity when sautéed with the beef.
Salt (1/2 tsp): Essential for seasoning and bringing out natural flavors.
Pepper (1/4 tsp): Adds a gentle kick without overpowering.
Garlic powder (1/4 tsp): Infuses classic Italian aroma throughout the dish.
Dried leaf oregano (1/2 tsp): The herbaceous backbone that elevates the sauce and meat mixture.
Marinara sauce (24 oz): Choose a high-quality sauce like Rao’s for the richest taste and vibrant tomato flavor.
Shredded mozzarella cheese (8 oz / 2 cups): Melts beautifully, creating that irresistible gooey, cheesy top layer.

How to Make Slow Cooker Ravioli Lasagna Recipe

Step 1: Brown the Meat and Sauté Onions

Start with a medium non-stick skillet over medium-high heat and toss in the ground beef and diced onion. Season with salt, pepper, garlic powder, and oregano to build the flavor base. Cook everything until the meat is nicely browned but still juicy. Don’t drain off all the juices; leaving a little bit in keeps your lasagna layers moist and flavorful.

Step 2: Prepare the Slow Cooker

Give your slow cooker a quick spray with non-stick spray to ensure your lasagna layers will lift out effortlessly when it’s done.

Step 3: Layer the Sauce and Ravioli

Pour half of your marinara sauce directly into the bottom of the slow cooker. This is your flavorful foundation that keeps everything saucy and delicious. Then spread half of the frozen ravioli over the sauce, making sure they’re laid out evenly for perfect layers.

Step 4: Add the Meat Mixture

Next, spread all of your beautifully cooked ground beef and onion mixture over the ravioli. This adds that savory, meaty richness you expect in a classic lasagna.

Step 5: Finish Layering

Place the remaining ravioli on top of the meat, then pour the rest of the marinara sauce over everything, ensuring the ravioli are well-coated and will absorb those bright tomato flavors as they cook.

Step 6: Top with Cheese and Cook

Sprinkle the shredded mozzarella cheese generously over the top for that signature gooey, melty finish. Place the lid on the slow cooker and set it to LOW for 4 hours. This slow, gentle cooking melds all the layers into lasagna bliss.

How to Serve Slow Cooker Ravioli Lasagna Recipe

A white plate holds three main parts: on the bottom right, there are several pieces of ravioli covered in a sauce of cooked ground meat and melted yellow-orange cheese, with some tomato chunks visible in the sauce; on the top right, two thick slices of soft white bread are stacked side by side; on the left side of the plate, a fresh salad made of mixed green and purple lettuce leaves and whole yellow and red cherry tomatoes adds color and texture. The plate sits on a rustic wooden surface with a gray cloth in the background. Photo taken with an iphone --ar 4:5 --v 7

Garnishes

Once your Slow Cooker Ravioli Lasagna Recipe is ready, add a sprinkle of fresh basil or chopped parsley to introduce a fresh, herbal note that contrasts beautifully with the rich cheese and sauce.

Side Dishes

Pair this hearty main with a crisp, green salad dressed with a tangy vinaigrette or some garlic bread to soak up every last bit of sauce. A simple roasted vegetable also complements without overpowering the dish.

Creative Ways to Present

For an extra special touch, serve individual portions in shallow bowls topped with a dollop of ricotta or a drizzle of extra virgin olive oil. You could also create mini-lasagna cups by spooning the ravioli lasagna into oven-safe ramekins and sprinkling extra cheese for a bubbly finish under the broiler.

Make Ahead and Storage

Storing Leftovers

Leftovers store beautifully in an airtight container in the refrigerator for up to 3 days. The flavors actually deepen, so the next day’s serving is just as delightful—if not better!

Freezing

You can freeze your Slow Cooker Ravioli Lasagna Recipe either fully assembled before cooking or as leftovers. Wrap tightly in foil and plastic wrap, then freeze for up to 2 months. Thaw overnight in the fridge before reheating.

Reheating

Reheat individual portions in the microwave until warmed through or place them in an oven-safe dish covered with foil at 350°F until bubbling, usually around 20 minutes. The cheese will regain its melty charm, and the sauce will be steaming hot again.

FAQs

Can I use fresh ravioli instead of frozen for this recipe?

Fresh ravioli could work, but since they cook faster, you’ll want to reduce the slow cooker time to avoid them becoming too mushy. Frozen ravioli holds up better during the 4-hour slow cooking process.

Is it possible to make this recipe vegetarian?

Absolutely! Substitute the ground beef with sautéed mushrooms, lentils, or your favorite plant-based protein. The marinara and cheese layers still provide amazing flavor and texture for a satisfying vegetarian slow cooker meal.

Can I use a different cheese besides mozzarella?

Mozzarella is perfect for melting, but feel free to mix in provolone or fontina for more depth. Just keep the total amount similar to ensure the right cheesy texture.

What if I don’t have dried leaf oregano?

If you only have ground oregano, use roughly half the amount. You want the herb note without overpowering the sauce. Alternatively, Italian seasoning works well as a blend.

Can I speed up the cooking process?

Slow cooking on LOW for 4 hours gives the best texture and flavor meld, but you can cook on HIGH for about 2 hours if you’re pressed for time—just check to make sure the ravioli layers are cooked through and the cheese is melted.

Final Thoughts

This Slow Cooker Ravioli Lasagna Recipe transforms dinner time into a warm, comforting experience with minimal effort. It’s the kind of recipe you’ll want to keep in your regular rotation, perfect for busy days or relaxed weekends. Trust me, once you try it, you’ll wonder how you ever made lasagna any other way!