perfect easy pasta bake with sausage - TK

Ingredients

• 16 ounces ground breakfast sausage, such as Jimmy Dean or Tennessee Pride (or use turkey sausage)
• 8 ounces rotini or fusilli pasta
• 1/2 onion, chopped
• 2 cups chopped tomatoes
• 1 cup frozen kale or spinach, mostly thawed
• 2 tablespoons low or no sugar ketchup, such as Primal Kitchen brand
• 1/2 teaspoon sea salt
• 1/2 teaspoon freshly ground pepper
• 1-2 cups shredded cheese to top (I used pepperjack, which was fabulous, but mozzarella works fine as well)
• Chopped parsley or basil for garnish (optional)