1Cook and drain spaghetti as directed on package.
2While spaghetti is cooking, cook bacon in 3-quart saucepan over low heat 8 to 10 minutes, stirring frequently, until crisp. Remove bacon from saucepan with slotted spoon; drain. Drain fat from saucepan, reserving 1 tablespoon in saucepan.
3Cook onion and garlic in bacon fat over medium heat about 3 minutes, stirring frequently, until onion is tender. Stir in spaghetti, chicken, cheese and whipping cream. Cook, stirring occasionally, until heated through. Toss with bacon.