Name: Creamy Spinach Lasagna with Basil Sauce Recipe
Prep time: 30 min
Cook time: 1 h 10 min
Total time: 1 h 40 min
Cuisine: Italian
Ingredients: 1-2 tablespoons olive oil; 1 onion, diced; 4 garlic cloves, minced; 1 red bell pepper, diced (see notes for alternatives); 1 1/2 cups corn or mushrooms (see notes for other options); 1/2 teaspoon salt; 1/2 teaspoon pepper; Optional: 1/4 teaspoon chili flakes; 1 tablespoon fresh oregano, or 1 teaspoon dried Italian seasoning or oregano; 1 lb fresh spinach, chopped (reserve 1 ounce or 1 cup for sauce; see notes for frozen); 1 tablespoon lemon zest; 2-ounce fresh basil leaves (about 2 cups packed); 1-ounce baby spinach (about 1 cup packed); 1 3/4 cups milk (soy, whole, or nut milk); 1/2 teaspoon salt, more to taste; 1/2 teaspoon pepper; 2 fat garlic cloves; 1 tablespoon flour or cornstarch; 2 tablespoons olive oil; 2 cups whole milk ricotta or substitute with cottage cheese; 1 egg (optional); 9 lasagna noodles (3 layers) – fresh, no-boil, or cooked until al dente; 2 1/2 cups shredded mozzarella; 1/4 cup pecorino or parmesan, plus 2 tablespoons for topping; Garnish: fresh basil ribbons and chili flakes

Jump to Recipe· 3.8 from 60 reviews

If you’re looking for a dish that wraps you in comfort while delighting your palate with fresh, vibrant flavors, the Creamy Spinach Lasagna with Basil Sauce Recipe is exactly what you need. This luscious lasagna layers tender noodles with a rich ricotta and spinach filling, all bathed in a velvety basil-infused sauce that’s bursting with herbal brightness and subtle garlic notes. Perfect for cozy dinners or impressing guests, this recipe transforms humble ingredients into a show-stopping dish you’ll want to make again and again.

Ingredients You’ll Need

A top view shows a white marbled surface with several small white bowls and plates holding fresh ingredients. There is a small white bowl filled with bright yellow corn kernels near the top left. To the right, yellow uncooked lasagna sheets are stacked neatly. Below them, a white bowl contains white ricotta cheese, and next to it, a bowl holds shredded light yellow cheese. In the center, a larger white bowl is filled with fresh green spinach leaves. On the left, a white plate holds green basil leaves, several garlic cloves, and a small onion. Below the plate, a whole red bell pepper and a whole lemon rest on the marbled surface. A white bowl filled with grated parmesan cheese is near the bottom center. The whole scene has bright, natural lighting. Photo taken with an iphone --ar 4:5 --v 7

Gathering the right ingredients is key because each one plays a crucial role in building the layers of flavor, texture, and color in this creamy spinach lasagna. From fresh leafy greens to aromatic herbs and cheeses, these essentials come together to create a dish that’s both wholesome and mouthwatering.

Olive oil: Adds a fruity richness and is perfect for sautéing the veggies without overpowering their natural flavor.

Onion, diced: Provides a sweet, savory base that softens beautifully in the filling.
Garlic cloves: Brings a warm, pungent aroma that infuses the entire dish with depth.
Red bell pepper: Adds vibrant color and a subtle sweetness that balances the savory elements.

Corn or mushrooms: Offers a meaty texture or burst of sweetness depending on your choice, enhancing the filling complexity.
Fresh oregano or Italian seasoning: Adds herbal notes that brighten the vegetable medley.
Fresh spinach: The star green that brings freshness, nutrition, and a silky texture when cooked.

Lemon zest: A hint of citrus that lifts the flavors and keeps the dish lively.
Fresh basil leaves and baby spinach: Essential for the creamy basil spinach sauce with their fragrant, leafy goodness.
Milk (any variety): Creates the smooth, creamy base of the sauce that clings to each noodle.

Flour or cornstarch: Acts as the thickening agent to give the basil sauce that perfect luxurious consistency.
Ricotta cheese (or cottage cheese): Brings creamy richness and lightness to the filling, balancing all the veggies.
Egg (optional): Helps bind the filling for a sturdier texture but is completely optional if you prefer.

Lasagna noodles: Choose fresh, no-boil, or par-cooked noodles to build those signature layers.
Mozzarella cheese: Shredded for melty, gooey cheesiness throughout the dish.
Pecorino or Parmesan cheese: Adds a sharp, salty finish that elevates every bite.

Garnishes (fresh basil ribbons and chili flakes): For a pretty, flavorful touch just before serving.

How to Make Creamy Spinach Lasagna with Basil Sauce Recipe

The dish is a green lasagna baked in a white rectangular dish. It has two main visible layers: a bright, creamy green sauce on top with a smooth and slightly bubbly texture, covered with fresh dark green spinach leaves scattered on the surface. The edges show thick, folded green pasta sheets that blend into the sauce. The lasagna is sprinkled with small reddish chili flakes and black pepper. A silver spatula rests on the top left corner of the dish, and fresh basil leaves lie beside the dish on a white marbled surface next to a beige and white striped cloth. Photo taken with an iphone --ar 4:5 --v 7

Step 1: Prepare the Flavorful Veggie Filling

Start by heating olive oil in a large sauté pan on medium-high heat. Toss in diced onion, garlic, and red bell pepper to create a fragrant and colorful base. After a few minutes, add your choice of corn or mushrooms plus seasoning with salt, pepper, chili flakes, and oregano. Once softened, stir in the chopped fresh spinach and let it wilt down until the mixture is well combined and fragrant. Don’t forget to add lemon zest here for that subtle zing—this filling will be the hearty vegetable heart of your lasagna.

Step 2: Blend the Lush Basil Spinach Sauce

Into the blender goes fresh basil, baby spinach, milk, salt, pepper, garlic, and flour or cornstarch—everything that will come together to form your creamy basil spinach sauce. Blend until flawlessly smooth, then slowly drizzle in olive oil to emulsify the mixture, creating a silky, luscious sauce that’s ready to be gently warmed on the stove until thickened. This sauce is the real showstopper, wrapping every layer with herbaceous creaminess.

Step 3: Combine the Ricotta and Filling

In a large bowl, mix ricotta cheese and egg (if using) to create a creamy base. Fold in the cooled veggie mixture, then stir in shredded mozzarella and grated pecorino or Parmesan cheese. This combination balances creaminess with cheesy depth and a pleasant texture, ensuring that each bite is rich and satisfying.

Step 4: Assemble the Layers

Grease a 9×13-inch baking dish and start with a thin layer of the basil sauce on the bottom to keep noodles from sticking and to infuse flavor from the start. Layer noodles, half of the ricotta-veggie filling, spoon more sauce on top, then repeat for the second layer. Finish with a third noodle layer and top generously with the remaining sauce and cheeses. Cover with parchment paper and wrap tightly with foil to seal in moisture, which is especially important if you’re using no-boil noodles to ensure they cook perfectly without drying out.

Step 5: Bake Until Bubbling and Golden

Bake the lasagna at 400°F according to your noodle type’s instructions—usually about 40 to 50 minutes covered, followed by 10 minutes uncovered to develop a golden, melty cheese crust. The bubbling sauce and melted cheese are your signs that the Creamy Spinach Lasagna with Basil Sauce Recipe is ready to be enjoyed.

How to Serve Creamy Spinach Lasagna with Basil Sauce Recipe

Garnishes

Fresh basil ribbons add a lovely herbal fragrance and bright green pop, while a sprinkle of chili flakes lends just the right kick if you like a hint of spice. Together, they finish the dish beautifully and add fresh, inviting aromas as you serve.

Side Dishes

Serve alongside a crisp mixed greens salad tossed in a light vinaigrette or some roasted seasonal vegetables for a balanced meal. Garlic bread or a crusty baguette also pairs wonderfully, perfect for soaking up any extra creamy basil sauce left on the plate.

Creative Ways to Present

Try mini individual lasagnas baked in ramekins for an elegant presentation or stack beautiful layers in clear glass baking dishes to show off the vibrant green filling and silky sauce. A quick drizzle of high-quality olive oil before serving will add a glossy finish and extra depth of flavor.

Make Ahead and Storage

Storing Leftovers

Leftover Creamy Spinach Lasagna with Basil Sauce Recipe keeps well in the fridge for up to 4 days. Cover tightly with foil or place in an airtight container to preserve moisture and flavors. The lasagna tends to taste even better the next day as the flavors have time to meld.

Freezing

This lasagna freezes beautifully either before or after baking. Wrap it well in multiple layers of foil or use a freezer-safe container to avoid freezer burn. It will stay delicious for up to 3 months, making it perfect for meal prep or special occasions when you want a homemade meal waiting in the freezer.

Reheating

Reheat leftovers covered in the oven at 350°F until warmed through, about 20-30 minutes. If reheating from frozen, thaw overnight in the fridge first, then warm slowly to keep that creamy texture intact. Microwaving works for quick portions but may slightly alter the sauce’s silky consistency.

FAQs

Can I use frozen spinach for this lasagna?

Absolutely! Just make sure to thaw and squeeze out as much moisture as possible before adding it to the filling to avoid sogginess. Frozen spinach is a convenient alternative without sacrificing flavor.

Is the egg in the filling necessary?

The egg helps bind the filling and gives it a firmer structure, but it’s entirely optional. If you prefer egg-free versions, the lasagna will still be creamy and delicious, just a bit softer.

What if I don’t have fresh basil?

Fresh basil is key for that bright, aromatic sauce, but if you only have dried basil, you can use it thoughtfully in the filling and sauce. Keep in mind dried herbs are less vibrant, so add cautiously to avoid overpowering the dish.

Can I make this recipe vegan?

With a few substitutions like plant-based ricotta, milk alternatives, and vegan cheese, you can create a vegan version of the Creamy Spinach Lasagna with Basil Sauce Recipe. The sauce is easily made dairy-free using nut milks and vegan butter or olive oil.

How do I know when the lasagna noodles are perfectly cooked?

If using no-boil noodles, follow packaging instructions and the baking times carefully; the foil seal traps steam so the noodles cook evenly. For fresh or par-cooked noodles, bake until tender and the top is bubbly and golden, usually when a knife slides through easily.

Final Thoughts

Making the Creamy Spinach Lasagna with Basil Sauce Recipe is such a rewarding experience — it brings together fresh ingredients and rich textures into a dish that feels like a warm hug on your plate. Whether it’s a family dinner or a special occasion, I promise this lasagna will become one of your favorites to share and savor again and again.