Step 1

Preheat the oven to 400 degrees F.

Step 2

Toss the bread, olive oil, a pinch of salt and several grinds of pepper on a rimmed baking sheet until combined, then spread into an even layer. Bake until the croutons are golden brown and well toasted, tossing halfway through, 10 to 12 minutes.

Step 3

Meanwhile, add the bacon to a medium skillet and cook over medium heat, stirring occasionally, until crisp and well browned, about 5 minutes. Transfer to a paper towel-lined plate with a slotted spoon to drain.

Step 4

For the dressing, puree the basil, parsley, dill, mayonnaise, yogurt, lemon juice, 2 teaspoons water, 1/4 teaspoon salt and several grinds of pepper in a food processor until the herbs are finely chopped and dressing is bright green. Taste and adjust the seasoning with more salt and pepper.

Step 5

To assemble, add the beans, romaine, tomatoes, half the croutons and half the bacon to a large bowl. Add half of the herb-mayo dressing, then toss to combine. Transfer to a large serving bowl or platter, top with the remaining croutons and bacon and drizzle with the remaining dressing.