Preheat oven to 350°. Spray baguette slices with cooking spray or brush with olive oil. Bake 8 to 10 minutes or until crisp, turning once. Meanwhile, in a small skillet, cook bacon over medium heat 6 to 8 minutes or until crisp; drain on paper towel.
In a medium bowl, toss together crab, mayonnaise, parsley, lemon juice, Worcestershire, lemon zest, white pepper, salt and bacon. Makes about 2 cups crab mixture.
Top each baguette slice with a heaping tablespoon of crab mixture. Top with avocado slice and sprinkle with red pepper flakes.