Creating your Sardine Sandwich is straightforward. Follow these simple steps:

1. Open Sardines: Carefully open the can of sardines and drain the oil (or keep it for richness, if desired).
2. Prepare Bread: Toast your bread slices as per your preference, either lightly or until crispy.
3. Spread Condiments: Evenly spread mayonnaise and mustard on one side of each slice of bread. Adjust quantities to your liking!
4. Layer Sardines: Place the sardines on one slice of the bread. You can break them up slightly or leave them whole, depending on your texture preference.
5. Add Vegetables: Layer on the sliced cucumber, lettuce, and tomato. Feel free to add as much or as little as you like!
6. Season: Sprinkle salt and pepper to taste. Fresh herbs can also be added at this stage for an aromatic touch.
7. Build the Sandwich: Place the second slice of bread, condiment-side-down, on top of the veggies and sardines.
8. Slice and Serve: Cut the sandwich in half or quarters for easier consumption.
9. Optional Garnish: Serve with lemon wedges on the side for an added zest.

This recipe is so easy and flexible. You can mix and match ingredients based on what you have on hand!