Open the can of salmon and drain the liquid.
In a mixing bowl, flake the salmon with a fork.
Add mayonnaise, Dijon mustard, and lemon juice to the salmon.
Mix thoroughly until combined.
Stir in the chopped celery and red onion.
Season with salt and pepper to taste.
If desired, fold in fresh dill for added flavor.
Serve the mixture on whole grain rolls or in lettuce leaves.
Top with sliced avocado for a creamy texture.
Enjoy your delicious canned salmon salad!