Crockpot Chicken Spinach Lasagna with Ricotta

This Crockpot Chicken Spinach Lasagna is warm, cheesy, and packed with tender chicken, creamy ricotta, spinach, and plenty of sauce. The slow cooker does most of the work, so you get all the comfort of homemade lasagna without boiling noodles or watching the oven.

Servings: 8
Prep time: 25 minutes
Cook time: 3 1/2 to 4 hours on LOW
Rest time: 20 minutes
Total time: About 4 hours 45 minutes

Why I Love This Recipe

I love lasagna, but I do not always want the work that comes with a traditional pan of it. That is where this crockpot version comes in.

The first time I worked on this style of lasagna, my goal was simple: keep those rich, cheesy layers but cut out the fussy parts. Using no-boil noodles and cooked shredded chicken makes a big difference. You layer everything right in the crockpot, turn it on, and leave it alone.

There is also something extra good about chicken, spinach, and ricotta together. The chicken makes the meal hearty, the spinach adds freshness, and the ricotta keeps every bite creamy.

• No need to boil the lasagna noodles first.
• Cooked chicken saves prep time.
• The ricotta filling stays soft and creamy.
• Spinach adds color and vegetables without taking over the dish.
• The crockpot slowly brings all the flavors together.
• It makes enough for dinner plus possible leftovers.

What You’ll Need

• 12 no-boil lasagna noodles, about 9 ounces
• 3 cups cooked chicken, finely shredded
• 5 ounces fresh baby spinach, roughly chopped
• 15 ounces whole-milk ricotta cheese
• 1 large egg
• 1/2 cup finely grated Parmesan cheese, divided
• 3 cups shredded low-moisture mozzarella cheese, divided
• 4 cups marinara sauce, divided
• 1 teaspoon Italian seasoning
• 1/2 teaspoon garlic powder
• 1/2 teaspoon salt
• 1/4 teaspoon black pepper
• 2 tablespoons finely chopped fresh parsley, optional

Recipe and Instructions

Step 1: Make the Ricotta Filling

Add 15 ounces whole-milk ricotta cheese, 1 large egg, 1/4 cup finely grated Parmesan cheese, 1 teaspoon Italian seasoning, 1/2 teaspoon garlic powder, 1/2 teaspoon salt, and 1/4 teaspoon black pepper to a medium bowl.

Stir until smooth and well mixed. Fold in 5 ounces roughly chopped fresh baby spinach. Keep stirring just until the spinach is spread through the ricotta.

Step 2: Start the First Layer

Place the black oval 6-quart crockpot straight and centered on the marble surface.

Spread 1 cup marinara sauce over the bottom. Break 3 no-boil lasagna noodles as needed so they form one layer over the sauce. Small gaps are fine.

Add 1 cup finely shredded cooked chicken evenly over the noodles. Spoon one-third of the spinach-ricotta filling over the chicken. Sprinkle with 3/4 cup shredded low-moisture mozzarella cheese.

Step 3: Build the Second Layer

Spread 1 cup marinara sauce over the first layer.

Add 3 no-boil lasagna noodles, breaking them to fit the oval shape. Add 1 cup finely shredded cooked chicken, one-third of the spinach-ricotta filling, and 3/4 cup shredded low-moisture mozzarella cheese.

Spread the ingredients from edge to edge so each serving gets plenty of filling.

Step 4: Build the Third Layer

Repeat one more time with 1 cup marinara sauce, 3 no-boil lasagna noodles, the remaining 1 cup finely shredded cooked chicken, the remaining one-third of the spinach-ricotta filling, and 3/4 cup shredded low-moisture mozzarella cheese.

Gently spread the ricotta instead of pressing hard on the layers.

Step 5: Add the Top Layer

Place the final 3 no-boil lasagna noodles over the filling. Spread the remaining 1 cup marinara sauce all the way over the noodles. Make sure the dry noodles are covered with sauce so they have enough moisture to soften.

Finish with the remaining 3/4 cup shredded low-moisture mozzarella cheese and 1/4 cup finely grated Parmesan cheese.

Step 6: Slow Cook the Lasagna

Place the lid on the crockpot. Cook on LOW for 3 1/2 to 4 hours.

Start checking near 3 1/2 hours. The lasagna is ready when the noodles are tender when pierced with a thin knife and the center is hot. The cheese should be fully melted.

Do not keep cooking after the noodles are tender. Slow cookers vary, and too much time can make the edges dry.

Step 7: Rest, Garnish, and Serve

Turn off the crockpot and remove the lid. Let the lasagna rest for 20 minutes. This is important because the layers need time to firm up.

Why This Recipe Works (Quick Science)

No-boil noodles need liquid to become tender. The 4 cups of marinara sauce, along with moisture from the ricotta and spinach, gives them what they need while the crockpot cooks.

The egg also matters. It helps the ricotta filling set instead of staying runny. Low-moisture mozzarella melts well without adding too much extra liquid.

Cooking on LOW gives the noodles time to soften before the edges overcook. Then the 20-minute rest lets the hot cheese, sauce, and filling firm up. That is what makes it easier to cut clean pieces.

Pro Tips

• Cover every noodle with sauce. A dry corner can stay hard.
• Use low-moisture mozzarella. Fresh mozzarella can release too much water.
• Do not skip the resting time. Twenty minutes makes a big difference when cutting the lasagna.
• Shred the chicken fairly small. Big chunks make the layers harder to cut and eat.
• Check early. Crockpots do not all cook at exactly the same speed.

Tools You’ll Need

• 6-quart black oval crockpot with lid
• Medium mixing bowl
• Silicone spatula
• Large spoon
• Measuring cups
• Measuring spoons
• Chef’s knife
• Cutting board
• Thin knife for checking noodles
• Serving spatula

Substitutions and Variations

• Chicken: Cooked shredded turkey works well.
• Spinach: You can use frozen spinach. Thaw it first and squeeze it very dry.
• Ricotta: Whole-milk cottage cheese can work, but the texture will be less smooth.
• Mozzarella: Part-skim low-moisture mozzarella is fine.
• Marinara: Use your favorite smooth or chunky tomato pasta sauce.
• More vegetables: Add a thin layer of cooked mushrooms. Cook off their extra moisture first.
• More heat: Add crushed red pepper flakes to the ricotta mixture.

Common Mistakes

Leaving noodles exposed: No-boil noodles need moisture. Cover the top noodles completely with marinara sauce.

Using watery spinach: If you substitute frozen spinach, squeeze out as much water as possible. Extra water can make the lasagna soupy.

Cooking it too long: Once the noodles are tender, the lasagna is done. Leaving it in the crockpot for hours longer can dry out the edges.

Cutting right away: Freshly cooked lasagna is very soft. Give it the full 20-minute rest before cutting.

Overfilling the crockpot: A 6-quart oval crockpot gives these layers enough room to cook evenly.

What to Serve With

This lasagna is already a filling meal, so simple sides work best.

• Garlic bread
• Warm dinner rolls
• Caesar salad
• Simple green salad with Italian dressing
• Roasted broccoli
• Roasted green beans
• Steamed vegetables

Make-Ahead Tips

You can cook and shred the chicken up to 3 days ahead and keep it covered in the refrigerator.

You can also mix the ricotta filling a day ahead. Cover it tightly and refrigerate it until you are ready to assemble the lasagna.

For food safety and better noodle texture, I prefer assembling the full crockpot lasagna shortly before cooking rather than leaving the filled crockpot sitting overnight.

Macros Information

Approximate nutrition for 1 of 8 servings:

• Calories: 530
• Protein: 41 g
• Carbohydrates: 39 g
• Fat: 24 g
• Fiber: 4 g

These numbers are estimates. Your marinara, chicken, noodles, ricotta, and cheese brands can change the final macros.

Leftovers and Storage

Let leftovers cool, then place them in an airtight container. Refrigerate for up to 3 to 4 days.

For longer storage, freeze individual portions in freezer-safe containers for up to 3 months. Thaw them overnight in the refrigerator.

Reheat individual pieces in the microwave until steaming hot throughout. A spoonful of extra marinara on top can help keep reheated lasagna moist.

FAQ

Q: Do I need to boil the lasagna noodles first?
A: No. This recipe uses 12 no-boil lasagna noodles. Put them into the crockpot dry.

Q: Can I use regular lasagna noodles instead?
A: No-boil noodles are the most predictable choice for the liquid and cooking time in this recipe. Regular noodles can need different amounts of moisture and time.

Q: Do I need to cook the chicken first?
A: Yes. Use 3 cups of fully cooked, finely shredded chicken. Rotisserie chicken is an easy option.

Q: Can I use frozen spinach?
A: Yes. Thaw it completely and squeeze it very dry before mixing it with the ricotta.

Q: Why is my lasagna watery?
A: It may have too much moisture, or it may have been cut too soon. Watery spinach and fresh mozzarella are two common causes. Letting the finished lasagna rest for 20 minutes also helps.

Q: How do I know when it is done?
A: Push a thin knife through the center. The noodles should feel tender, the cheese should be melted, and the center should be hot.

Q: Can I cook it on HIGH?
A: LOW is the better choice for this recipe. It gives the noodles more time to soften while lowering the chance of dry or overcooked edges.

Final Thoughts

Crockpot Chicken Spinach Lasagna gives you those cozy lasagna layers with much less hands-on work. The tender chicken, creamy spinach ricotta, rich marinara, and melted cheese make every serving hearty and comforting.

Keep those noodles covered in sauce, cook just until tender, and give the finished lasagna time to rest. Those three little things make a big difference. Give it a try, then leave a comment about how yours turned out and any questions you have.