Cook the penne pasta according to the package directions.
In a large skillet, heat the olive oil over medium-high heat. Add the onions, mushrooms, bell peppers, and garlic and cook until the vegetables are tender, about 5 minutes.
Add the white wine and vegetable broth and bring to a boil. Reduce the heat to low and simmer for 5 minutes.
Stir in the cream and Parmesan cheese and simmer for another 5 minutes.
Season with salt and pepper to taste.
Add the cooked pasta to the skillet and toss to coat with the sauce.
Serve hot.
Interesting Facts
This dish is an excellent source of fiber and protein.
Alfredo sauce is traditionally made with butter and Parmesan cheese.
This dish can be made vegan by substituting the heavy cream for a vegan-friendly alternative.