In a large pot, heat 1 tablespoon of olive oil over medium heat. Add the ground turkey sausage and cook until browned, breaking it apart with a wooden spoon. This should take about 5-7 minutes.
Once the sausage is cooked through, add the minced garlic and diced onion to the pot. Sauté for an additional 2-3 minutes until the onions are translucent and fragrant.
Stir in the skim milk and low-sodium chicken broth. Bring the mixture to a gentle simmer, making sure to scrape any browned bits from the bottom of the pot for added flavor.
Add the pureed roasted red peppers to the pot. Mix well to combine all the flavors.
Stir in the whole-wheat penne pasta. Ensure the pasta is submerged in the liquid. Cover the pot and cook for about 10-12 minutes, or until the pasta is al dente. Stir occasionally to prevent sticking.
Once the pasta is cooked, fold in the fresh spinach, ricotta cheese, and shredded Parmesan. Stir until the spinach wilts and the cheeses melt into a creamy sauce.
Remove the pot from heat and stir in the chopped fresh basil. Serve your One Pot Turkey Sausage and Roasted Red Pepper Alfredo warm, garnished with additional Parmesan if desired.