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Butternut Squash and Kale Lasagna with Sage and Ricotta Cheese

By Clara Whitfield | February 24, 2026
Butternut Squash and Kale Lasagna with Sage and Ricotta Cheese
Prep Time
30 min
Cook Time
45 min
Servings
6

Why You'll Love This Recipe

✓ Autumnal Comfort: The sweet, nutty flavor of roasted butternut squash pairs perfectly with peppery kale, creating a warm, satisfying dish ideal for cooler evenings.
✓ Nutrient Boost: Kale supplies vitamins K, A, and C, while ricotta adds calcium and protein, making this lasagna both hearty and nutritious.
✓ Easy Prep: All components can be pre‑roasted or pre‑sautéed, allowing you to assemble the lasagna quickly and bake it to golden perfection.

When the first chill of autumn arrives, I reach for dishes that feel like a warm hug. This butternut squash and kale lasagna does exactly that, blending the silky sweetness of roasted squash with the earthy bite of kale, all layered between tender pasta sheets and creamy ricotta. The fragrant sage ties the flavors together, giving the dish a comforting, herbaceous depth that reminds me of family gatherings around the table.

The inspiration came from a simple weekday dinner where I wanted something wholesome without spending hours in the kitchen. By swapping traditional meat for roasted vegetables, the lasagna becomes lighter yet still satisfying. It’s a perfect example of how seasonal produce can transform a classic Italian staple into a vibrant, veggie‑forward masterpiece.

What sets this recipe apart is the balance of textures: the caramelized edges of the squash, the slight crunch of sautéed kale, and the smooth ricotta‑sage mixture that binds everything together. The result is a dish that feels indulgent yet nutritious, making it ideal for both cozy family meals and impressing guests.

3 cups chopped kale, stems removed Massage lightly to soften; can use spinach.
2 cups ricotta cheese Full‑fat for creaminess; can blend cottage cheese + cream.
1 cup grated Parmesan Adds salty depth; Pecorino works too.
12 lasagna noodles (no‑boil or regular) If using regular, pre‑cook until al‑dente.
2 tbsp fresh sage, finely chopped Can substitute dried sage (1 tsp).
2 cloves garlic, minced Adds aromatic depth.
1 cup mozzarella, shredded For a golden crust.
1/2 tsp nutmeg Enhances the sweet notes of squash.
Salt and freshly ground black pepper Season each layer to taste.

Instructions

1

Roast the Squash

Preheat oven to 400°F (200°C). Toss cubed butternut squash with 1 tbsp olive oil, salt, pepper, and a pinch of nutmeg. Spread on a baking sheet and roast 20‑25 minutes, turning halfway, until caramelized and fork‑tender.

Pro Tip: Cut the cubes uniformly (½‑inch) for even browning.
2

Sauté Kale & Sage

In a large skillet, heat 2 tbsp olive oil over medium heat. Add minced garlic, cooking 30 seconds. Stir in chopped kale and fresh sage; sauté 5‑6 minutes until wilted and fragrant. Season with salt and pepper.

Pro Tip: If the pan dries out, splash a tablespoon of water to finish the wilt.
3

Mix Ricotta Filling

In a bowl, combine ricotta, half the Parmesan, chopped sage, a pinch of nutmeg, and a drizzle of olive oil. Mix until smooth; season with salt and pepper. This herb‑infused ricotta will bind the layers together.

Pro Tip: Add a tablespoon of cream for extra silkiness.
4

Assemble the Lasagna

Spread a thin layer of the ricotta mixture in the bottom of a 9×13‑inch baking dish. Lay 3 noodles, then half the roasted squash, half the kale, dollops of ricotta, and a sprinkle of mozzarella. Repeat layers, ending with noodles, remaining mozzarella, and the rest of the Parmesan.

Pro Tip: Cover the dish with foil (shiny side down) for the first 30 minutes to prevent over‑browning.
5

Bake & Rest

Bake at 375°F (190°C) for 30 minutes, then remove foil and bake another 10‑12 minutes until the cheese is bubbling and golden. Let the lasagna rest 10 minutes before slicing; this helps the layers set.

Pro Tip: Resting also intensifies the sage flavor.

Expert Tips

Tip #1: Roast with a Light Glaze

Mix a teaspoon of maple syrup with the olive oil before tossing the squash. The glaze deepens caramelization and adds a subtle sweetness that balances the sage.

Tip #2: Use No‑Boil Noodles

No‑boil lasagna sheets absorb moisture from the sauce, eliminating the need for pre‑cooking and reducing overall prep time.

Tip #3: Finish with Fresh Sage

Scatter a few fresh sage leaves over the top during the last 5 minutes of baking for a burst of aroma and color.

Storage & Variations

Cool the lasagna completely, then refrigerate in an airtight container for up to 4 days. Reheat covered at 350°F (175°C) for 20 minutes. For a gluten‑free version, replace regular noodles with rice‑flour lasagna sheets or thinly sliced zucchini. Add a pinch of smoked paprika for a subtle smoky twist.

Nutrition

Per serving

Calories
420 kcal
Protein
22 g
Carbs
35 g
Fat
18 g

Frequently Asked Questions

Yes, thaw and squeeze out excess moisture before sautéing. Frozen kale works well and reduces prep time, though fresh kale gives a brighter texture.

Use pre‑roasted squash from the grocery store and no‑boil noodles. Assemble and bake; total time drops to about 35 minutes.

Replace ricotta with tofu‑based ricotta, use vegan mozzarella, and substitute Parmesan with nutritional yeast. The flavor profile remains rich and satisfying.

Freeze unbaked for up to 2 months. Thaw overnight in the fridge, then bake as directed, adding 10‑15 minutes to the cooking time.

Butternut Squash and Kale Lasagna with Sage and Ricotta Cheese
Recipe Card

Butternut Squash and Kale Lasagna with Sage and Ricotta Cheese

Prep
30 min
Cook
30 min
Total
60 min
Servings
4
Category: Appetizers
Cuisine: International
Difficulty: Easy
Course: Main
Quick Tips
  • Make ahead friendly
  • Freezer safe 3 months
  • Easily doubled
  • Customizable

Ingredients

Instructions

1
Roast the Squash

Preheat oven to 400°F (200°C). Toss cubed butternut squash with 1 tbsp olive oil, salt, pepper, and a pinch of nutmeg. Spread on a baking sheet and roast 20‑25 minutes, turning halfway, until carameli...

2
Sauté Kale & Sage

In a large skillet, heat 2 tbsp olive oil over medium heat. Add minced garlic, cooking 30 seconds. Stir in chopped kale and fresh sage; sauté 5‑6 minutes until wilted and fragrant. Season with salt an...

3
Mix Ricotta Filling

In a bowl, combine ricotta, half the Parmesan, chopped sage, a pinch of nutmeg, and a drizzle of olive oil. Mix until smooth; season with salt and pepper. This herb‑infused ricotta will bind the layer...

4
Assemble the Lasagna

Spread a thin layer of the ricotta mixture in the bottom of a 9×13‑inch baking dish. Lay 3 noodles, then half the roasted squash, half the kale, dollops of ricotta, and a sprinkle of mozzarella. Repea...

5
Bake & Rest

Bake at 375°F (190°C) for 30 minutes, then remove foil and bake another 10‑12 minutes until the cheese is bubbling and golden. Let the lasagna rest 10 minutes before slicing; this helps the layers set...

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