In a medium bowl, whisk together the mayonnaise, sour cream, and milk until smooth and well combined. Add the freshly minced garlic, lemon juice, salt, black pepper, and smoked paprika, stirring to incorporate evenly. Fold in the chopped chives last, which will help preserve their fresh flavor and vibrant color. Taste and adjust seasoning as needed. This dressing can be made up to a few hours ahead and refrigerated, which actually allows the flavors to meld beautifully.

Cook the bacon in a skillet over medium-high heat until it reaches your desired crispness, then transfer to a paper towel-lined plate to drain and cool slightly. Once cooled, chop into bite-sized pieces. While the bacon cooks, chop the lettuce into 1-inch ribbons and dice the tomatoes into 1/2-inch pieces, keeping them separate to prevent the tomatoes from releasing excess moisture into the greens. I find that prepping the vegetables while the bacon cooks maximizes efficiency without any idle time in the kitchen.

Place the chopped lettuce in a large serving bowl or on individual plates. Arrange the diced tomatoes, crispy bacon, and croutons over the lettuce. Pour the creamy herb dressing from Step 1 over the salad and toss gently but thoroughly until all components are evenly coated. I recommend tossing the salad just before serving to keep the croutons as crispy as possible—this dish is all about the contrast between the tender greens, juicy tomatoes, and crispy elements!