Cut the baguette into 24 slices, about 1/2-inch thick. Set aside.
Peel the cucumber. Cut into 24 thin slices. Set aside.
In a medium mixing bowl, stir the cream cheese, mayonnaise, and Italian dressing mix until well combined.
Spread a good layer of the cream cheese mixture on each baguette slice and then top with a slice of cucumber.
Sprinkle a little dill weed over each bruschetta. Use as much as you like to your taste. Serve immediately.
Notes
You should get at least 48 slices of bread from 1 baguette loaf, which means you can easily double the cream cheese and cucumber amounts to use up all the bread. The yield will ultimately depend on how much cream cheese mixture you put on each slice of bread.
To prep ahead: Slice the bread and cucumber and store in their own airtight containers. Mix the cream cheese spread and store in an airtight container. Then assemble when ready.