Heat a frying pan with olive oil and fry the garlic for 2 minutes, then add the shrimp and cook for another 3 minutes. Add the spices, sweet pepper, stir and cook for 4 minutes. Then transfer the shrimp and pepper to a separate container.
In the same pan, fry the mushrooms, return the shrimp and pepper and mix gently.
Add the cooked fettuccine to the pan, sprinkle with cheese and stir.