In a large skillet over medium heat, add olive oil. If using chicken or shrimp, season and cook for 5–7 minutes until browned. Remove from skillet.

Add more olive oil if needed, then toss in chopped broccoli, cauliflower, and carrots. Sauté for 5–7 minutes until tender but crisp.

Stir in uncooked pasta along with enough water or broth to cover (about 4 cups). Bring to a simmer and cook according to package instructions (10–12 minutes).

Once pasta is al dente, lower heat, stir in reserved protein and creamy Parmesan sauce. Mix until cheese melts into a coating.

Remove skillet from heat and serve hot. Optionally, sprinkle additional Parmesan or fresh herbs on top.