siggi's Icelandic yogurt - sage butternut squash lasagna

Ingredients

• 1 medium butternut squash, peeled and seeds removed, diced into 1/2″ cubes
• 12 sheets of no-boil lasagna sheets
• 1/2 cup Parmesan cheese
• 1/2 bunch sage leaves
• 2 Tbsp olive oil
• 1/8 tsp fresh nutmeg
• 4 Tbsp all-purpose flour
• 2 1/4 cups whole milk
• 4 ounces siggi’s 4% plain skyr
• 1/2 cup mozzarella, shredded
• 1/4 cup parmesan, shredded
• 1 tsp salt