Smoked Sausage, Pumpkin, and Collard Greens Lasagna

Ingredients

• 1 pound uncooked lasagna noodles
• 3 tablespoons extra-virgin olive oil, divided
• 1 (12 ounce) package Hillshire Farm® Rope Smoked Sausage, cut in 1/4" cubes
• 1.5 cups finely chopped yellow onion
• 10 cups chopped collard greens
• 2 tablespoons minced garlic
• 2.5 teaspoons kosher salt, divided
• 1 teaspoon black pepper, divided
• 3 (15 ounce) cans pumpkin puree
• 0.25 cup heavy cream
• 0.25 teaspoon ground nutmeg
• 0.125 teaspoon cayenne pepper
• 2 (16 ounce) containers ricotta cheese
• 2 large eggs, lightly beaten
• 2 cups freshly grated Parmesan cheese, divided
• 2 cups freshly shredded fontina cheese, divided
• Cooking spray