Description

This sardine melt sandwich is a quick, nutritious twist on a classic tuna melt — rich in protein, omega-3 fats, and flavor. Made with canned sardines, creamy homemade mayonnaise, and crisp vegetables, it’s layered with melting cheese between slices of gluten-free bread for the perfect warm, satisfying lunch or dinner. Simple to make, nutrient-dense, and ready in minutes, this sardine melt is a wholesome way to enjoy one of the most underrated pantry staples: canned sardines.

Ingredients

FOR THE SARDINE SALAD

1 can sardines, drained
½ small red onion or shallot, finely chopped
1 celery rib, finely chopped
1 small piece of carrot, grated (about 1–2 tablespoons)
1 tablespoon capers, drained and chopped
2 tablespoons avocado or olive oil mayonnaise
Lemon juice, to taste
Salt and pepper, to taste
Optional: a dash of sriracha or red Tabasco for heat

FOR THE SANDWICHES

4 slices of gluten-free sandwich bread
About 2 tablespoons butter
2 slices goat cheddar (or any cheese that melts well)

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Instructions

Make the sardine salad: Drain the sardines and mash them with a fork in a small bowl. Add the chopped onion, celery, grated carrot, capers, and mayonnaise. Stir to combine, then season with lemon juice, salt, and pepper to taste.
Prepare the bread: If using gluten-free bread, lightly toast the slices first to remove excess moisture and improve texture. Place them on a cooling rack while still warm so the steam can escape and the bread doesn’t get soggy. Butter both sides of each slice.
Assemble the sandwiches: On one side, layer a slice of cheese. On the other, spread half of the sardine mixture. Close the sandwich. Repeat with the second sandwich.
Cook the melts: Heat a skillet over medium heat and melt a small amount of butter in the center (where you will place the sandwiches). Place the sandwiches in the pan (over the melted butter), cheese side down, and press gently with a spatula or a small pan to flatten slightly. Cook for 2–3 minutes per side, until the bread is golden brown and crispy and the cheese has melted.
Serve: Transfer to a cutting board and slice diagonally. Serve immediately, with a drizzle of sriracha or a few drops of Tabasco if you like a spicy kick.