Over medium high heat, add butter, shallot, and garlic to pan. Cook, stirring frequently, until shallot is soft and garlic is fragrant, about 3 minutes.
Add mushrooms and cook until soft, 5 minutes.
Add wine, beef bouillon, red pepper, and parsley. Cook until wine is completed reduced, 10 - 13 minutes.
Add cream, bring to a simmer and cook 10 more minutes, stirring frequently.
Add cooked pasta and stir to coat in sauce. Remove from heat. Add Romano cheese and stir until cheese is incorporated.
Serve with additional cheese, black pepper, and parsley.