Pour in the marinara sauce, beef broth, and Italian seasoning. Reduce heat to low and let the mixture simmer gently for 8-10 minutes to allow flavors to meld.
Add the cooked pasta to the skillet and toss until all the pasta is evenly coated with the sauce.
Sprinkle the shredded mozzarella and grated Parmesan cheese over the pasta. Cover the skillet with a lid and cook for 2-3 minutes, until the cheese is melted and gooey.
Taste and adjust seasoning with salt and black pepper as desired. Garnish with chopped fresh parsley if using. Serve hot!
Notes
Feel free to swap out the type of pasta or add extra veggies like bell peppers or spinach. This dish is super versatile!