Begin by bringing a large pot of salted water to a rolling boil over high heat. Add 8 oz of shell pasta and cook for 8-10 minutes or until al dente. Drain and set aside.

While the pasta cooks, heat a skillet over medium heat and add 1 tablespoon of olive oil. Add 1 cup of diced zucchini and sauté for 3-4 minutes until golden and tender.

Incorporate 2 cups of fresh spinach into the skillet with the zucchini and cook for an additional 1-2 minutes until the spinach wilts.

Add 12 oz of sliced chicken sausage to the skillet, and cook for 3-4 minutes until heated through and slightly browned.

Add the drained shell pasta into the skillet and pour in 8 oz of cream cheese or Alfredo sauce, stirring gently to combine. Cook for 2-3 minutes until warmed through.

Season with salt and pepper to taste, ensuring the sauce is creamy. Serve warm, garnished with fresh herbs if desired.