Saute onions and garlic in oil until tender. Add mushrooms and cook until soft. Add cognac and cook about 2 minutes. Add 1 tbsp flour and stir. Add chicken broth and reduce by 1/2(about 7 minutes). Add salt, heavy cream, tobasco sauce, and spinach, shrimp proscuitto, and mozerella. Simmer 10 minutes or until shrimps are pink.
Pour sauce over pasta and enjoy. Serve with garlic bread.