Sweet Potato Baked Ziti Recipe - (4/5)

Ingredients

• Marinara Sauce:
• Nonstick cooking spray
• 2 to 3 medium sweet potatoes, cut into 4-inch sections, ends trimmed
• 1 tablespoon olive oil
• 16 ounces chopped crimini mushrooms
• 1/4 cup finely minced shallot
• 1 teaspoon minced fresh garlic
• 1 teaspoon kosher salt, divided
• 1/2 teaspoon pepper, divided
• 1 teaspoon Italian seasoning
• 1 tablespoon balsamic vinegar
• 10 ounces frozen spinach, thawed and squeezed dry
• 16 ounces ricotta cheese
• 2 cups shredded mozzarella cheese, divided
• 1/4 cup plus 2 tablespoons grated Parmesan cheese, divided
• 1/2 teaspoon salt
• 1/4 teaspoon pepper
• 1 (28-ounce) can crushed tomatoes