Step 1

Cook pasta in boiling salted water according to package directions; drain. Rinse with cold water; drain and cool.

Step 2

Meanwhile, in a 12-inch skillet cook bacon over medium heat until crisp. Drain on paper towels, reserving 1 tsp. drippings in skillet. Coarsely chop bacon. Add garlic to reserved drippings. Cook and stir 1 minute or until golden and fragrant.

Step 3

For dressing, in an extra-large bowl combine sour cream, mayonnaise, chives, vinegar, milk, pepper, and garlic.

Step 4

Add pasta, bacon, lettuce, tomatoes, and cheese to dressing; toss to coat. If needed, stir in additional milk to reach desired creaminess. If desired, sprinkle with additional chives.