In 1 1/2 quart casserole, place butter, onion, garlic and bacon.
Microwave at high (10) 3 to 4 minutes; stir after 2 minutes.
Add cream, Parmesan cheese, parsley, pepper, salt and fettuccine.
Microwave at high (10) 1 1/2 to 3 minutes until heated through.
Sprinkle with remaining Parmesan cheese