Preparation Steps

• Preheat oven to 375°F.
• Cook sausage in a large pan over medium high heat until no longer pink. Stir often to crumble the sausage.
• Add onions, garlic and dried basil and stir to combine. Continue to cook for 5 minutes.
• Add mushrooms and stir to combine. Continue to cook for 5 minutes.
• Stir in diced tomatoes, tomato paste and pepper. Bring to a boil. Reduce heat to low and simmer for 15 minutes.
• Stir in spinach and remove from heat.
• In a small saucepan, melt butter over medium heat. Whisk in flour and cook for 1 minute, whisking constantly.
• Whisk in milk and cook for 5 to 10 minutes, whisking constantly. Once mixture is thickened, stir in 1.5 cups mozzarella cheese and salt.
• In a large pot, bring water to a boil. Cook spaghetti for 5 minutes. Drain. Add to meat sauce and stir.
• Spread meat mixture into an 9x13 inch casserole dish. Pour cheese sauce over top. Sprinkle with remaining mozzarella cheese and Parmesan cheese.
• Bake for 30 minutes or until topping is golden. Serve hot.