Place honey in a cup of hot water to soften. Bring cream cheese to room temperature. Adjust racks to top and middle positions and preheat oven to 425 degrees.
Slice baguette crosswise into 8 rounds (16 rounds for 4 servings). Roughly chop walnuts.
Toss baguette slices on a baking sheet with a drizzle of olive oil; season with salt and pepper. Arrange in an even layer and toast on middle rack until golden brown, 4-6 minutes. Remove from oven and let cool for 1 minute.
Spread baguette slices with cream cheese. Top with walnuts, a drizzle of honey, and a pinch of salt and pepper. TIP: Serve crostini as an appetizer while you cook the rest of the meal.