Makes 3-4 Servings

Ingredients

• 1 butternut squash, peeled and cubed
• 1 onion, sliced
• 3/4 cup milk
• 3/4 cup vegetable broth
• 1 pound sausage
• 2 cups spinach
• 3 cloves garlic
• 1 pound jumbo shells, cooked al dente
• 15 ounces ricotta
• 1 egg
• 1/4 cup parmesan, shredded
• Additional parmesan, shredded
• Olive oil
• Salt & pepper

Instructions

1. Preheat oven to 400 degrees.
2. Arrange onion and butternut squash in an even layer on a lined baking sheet.
3. Drizzle with olive oil and season with salt & pepper. Roast for 40 minutes.
4. Meanwhile, cook sausage over medium heat. When sausage is mostly browned, add spinach and garlic. Cook until spinach is wilted and remove from heat. 
5. Place roasted butternut squash and onion in a food processor or large bowl. Puree with processor or immersion blender.
6. Stir in milk and vegetable broth.
7. Pour butternut squash sauce into base of a 9×13 baking dish.
8. In a large mixing bowl, stir together ricotta, parmesan, and egg. Add sausage and spinach into ricotta and stir until evenly distributed.
9. Fill cooked pasta shells with 3-4 tablespoons of filling.
10. Arrange shells in butternut squash sauce in the 9×13 baking dish.
11. Bake for 30 minutes covered with aluminum foil followed by 15 minutes uncovered.
12. Option to serve with additional parmesan.

Thanks to the original recipe found here.