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Roasted Butternut Squash Lasagna Pressure Cooker Recipe

This hearty vegetarian lasagna features layers of roasted butternut squash, herb-infused creamy sauce, and Parmesan cheese, all cooked to perfection with pressure cooker efficiency and baked golden in the oven for a cozy, comforting meal.
Prep Time 15 minutes
Cook Time 1 hour 10 minutes
Total Time 1 hour 25 minutes
Servings 6 servings
Calories 480 kcal

Equipment

  • 1 9x13 inch baking pan
  • 1 Saucepan for bechamel
  • 1 Baking sheet for roasting squash

Ingredients
  

Main ingredients

  • 3 lbs Butternut squash peeled, seeded, and diced (about 8 cups)
  • 3 tablespoon Grapeseed oil or olive oil
  • 4 cups Milk 2% or whole
  • 2 sprigs Fresh rosemary
  • 2 sprigs Fresh sage
  • 1 tablespoon Minced garlic
  • 4 tablespoon Unsalted butter
  • 4 tablespoon All-purpose flour
  • 9 No-boil lasagne noodles
  • 1 ⅓ cups Parmesan cheese freshly grated
  • 1 cup Heavy cream

Instructions
 

Instructions

  • Preheat oven to 400°F. Toss diced squash with 2 tablespoon oil and roast on a baking sheet for 25–30 minutes until tender and browned.
  • Warm milk with rosemary and sage until steaming. Remove from heat and let steep. Strain out herbs before using.
  • In a saucepan, melt remaining 1 tablespoon oil with butter. Add garlic and cook 30 seconds. Stir in flour and cook for 1 minute. Gradually whisk in infused milk until thickened (5–7 minutes). Season with salt and pepper.
  • In a 9x13 inch pan, spread thin sauce layer. Add 3 lasagne sheets, a third of roasted squash, sauce, Parmesan, and cream. Repeat layers two more times. Finish with sauce, cheese, and drizzle of cream on top.
  • Cover with foil and bake at 375°F for 25 minutes. Remove foil and bake an additional 15–20 minutes until golden and bubbly.
  • Let rest for 10 minutes before slicing and serving.

Notes

You can make the sauce and roast the squash ahead of time. Lasagna keeps well refrigerated for 4 days or frozen for up to 3 months.