COOK bacon in large frypan on medium-high heat for 5 minutes or until crisp, stirring occasionally. Drain bacon and set it aside. Add onion and garlic to the frypan; cook and stir 2 minutes.
STIR in spinach. Reduce heat to medium; cook 3 minutes, stirring frequently. Add tomatoes; cook an additional 5 minutes, stirring occasionally
TOSS cooked pasta with sauce; sprinkle with cheese and reserved bacon.