In large skillet, cook bacon until crisp. Reserve 2 tablespoons drippings; drain and crumble bacon. In same skillet, brown chicken in reserved 2 tablespoons drippings; remove. Add carrots and garlic; cook and stir until tender-crisp. Add pasta sauce and chicken. Simmer, uncovered, 10 to 15 minutes or until chicken is tender. Meanwhile, cook spaghetti according to package directions; drain. Toss with oil. Slice chicken; serve on hot cooked spaghetti tossed with sauce. Garnish with crumbled bacon. Refrigerate leftovers.