Baked Sardine and Cheddar Melts
Mashed sardines bound with egg, folded with sharp cheddar, and baked into little mounds that turn set inside and bubbly-brown on top.
Why You'll Love This Recipe
Sharp cheddar is the reason this works on people who think they do not like sardines. Melted over the top it goes salty and nutty and meets the fish halfway, and what comes out of the oven tastes far more like a tuna melt than like a tin. One bowl, ten minutes, and every ingredient is something that keeps, so this is the recipe for a late afternoon when the cupboard is the only shop open and you want something hot rather than another handful of crackers.
The egg is doing the holding. Mashed into the sardines, it acts as a binder, setting in the oven's heat so the loose fish holds together as a mound instead of spreading into a puddle. Folding half the cheddar into the mixture melts it through the inside for richness, while the cheese sprinkled on top has room to bubble and brown, giving each melt a crisp, deeply savory crust that plays against the soft, flaky interior.
Oily fish and aged cheese, both of them rich and full-flavored, which is exactly why a couple of these small melts feel filling. Sardines bring the omega-3 fats and the clean, briny taste of the sea, and the cheddar rounds it with fat and a sharp tang. Together they deliver a lot of protein and staying power in a bite that is warm, crisp-edged, and bold.
Ingredients
- 2 cans sardines, drained
- 3/4 cup shredded cheddar
- 1 large egg
- 1/8 tsp salt
Instructions
- Preheat and line: Preheat the oven to 400°F (200°C) and line a sheet pan with parchment paper so the melts release cleanly and the cheese does not stick.
- Drain the sardines: Open the cans of sardines and tip them into a strainer, letting the packing liquid drain off fully; press them gently with the back of a fork to release the last of it, then move them to a mixing bowl.
- Mash and bind: Crack the egg into the bowl with the sardines, add the salt, and mash everything together with a fork until the fish breaks down into a rough, spreadable paste and the egg is fully worked in with no streaks.
- Fold in cheese: Fold half of the shredded cheddar into the sardine mixture until it is evenly distributed throughout.
- Portion the mounds: Using a spoon, drop the mixture onto the lined pan in eight small, evenly spaced mounds, gently rounding each one; leave a little space between them so the tops can brown.
- Top and bake: Sprinkle the remaining cheddar over the mounds and bake for 10 to 12 minutes, until the melts feel firm and set to the touch and the cheese on top is bubbling and browned at the edges. Let them cool on the pan for a couple of minutes before lifting them off.
Variations
- Extra sharp and crusty: Swap the shredded cheddar for an aged extra-sharp cheddar for a tangier bite and a top that browns even deeper. This keeps the dish rich in dairy.
- Two-cheese melt: Use half cheddar and half shredded hard cheese such as parmesan in the topping for a nuttier, saltier crust. This adds another dairy.
- Egg-rich and tender: Beat in a second egg for a softer, more custardy interior that sets a touch more gently. This adds more egg.
- Bacon-boosted: Fold finely chopped cooked bacon into the sardine mixture for a smoky, meaty depth. This adds pork.
- Anchovy edge: Mash a few drained anchovy fillets in with the sardines for a saltier, more intensely savory result. This adds more cured fish, so ease back on the added salt.
Storage & Leftovers
Keep the baked melts in an airtight container in the refrigerator, where they hold well for up to three days. Let them cool fully before you seal the container so trapped steam does not soften the browned tops.
To reheat, place them on a parchment-lined pan in a 350°F (175°C) oven or toaster oven for a few minutes until warmed through and the cheese crisps up again. Skip the microwave if you can, since it turns the crust rubbery and leaves the fish smelling stronger.
To get ahead, you can mix the sardines, egg, salt, and half the cheddar a day in advance and keep the mixture covered in the refrigerator; when you want them, portion, top with the remaining cheddar, and bake fresh so the tops brown properly.
Notes & Tips
- Drain thoroughly: Wet sardines make a loose mixture that spreads and steams instead of setting. Press them in the strainer until no more liquid runs off, and the mounds will hold their shape and brown better.
- Sardines packed in water or oil: Either works. Oil-packed sardines give a richer, softer melt; water-packed give a cleaner, milder flavor. Whichever you use, drain them well first.
- Shred your own cheese: A block of cheddar shredded at home melts and browns more smoothly than pre-shredded bags, which are coated with anti-caking starch that can keep the top from bubbling cleanly.
- Know when they are done: The melts are ready when they feel firm rather than jiggly to a light touch and the cheese on top is bubbling with browned edges; if the centers still feel soft, give them another minute or two.
- Salt with a light hand: Both sardines and cheddar carry salt of their own, so taste your usual brand in mind before adding more. You can always sprinkle a little extra on the finished melts than try to pull it back.
- Double the batch: These come together fast and reheat well, so it is worth making a larger tray at once. Store the extras cold and crisp them back up in the oven for a ready snack later in the week.
Nutrition & Mindful Eating
- Sardines, cheddar and egg hold each other together. The fish brings the savory depth, the cheddar melts around it and browns, and the egg sets the mixture so each melt keeps its shape coming out of the oven.
- Sardines are soft enough to mash into the mix, bones and all, which is where the calcium in these comes from, and the oil in the fish carries both the flavor and its long chain omega-3 fats.
- Sharp cheddar is doing more than melting. Its tang is strong enough to stand alongside the fish and hold its own, and the browned lacy edge where the cheese meets the hot tray is the best part of every one.
- The egg is the quiet ingredient. It binds everything, keeps the middles tender rather than dense, and brings complete protein along with the choline that sits in the yolk.
- These are rich and savory, so a couple go further than their size suggests. The protein and fat from the fish, the cheese and the egg together are what make them eat like a proper snack.
- As you eat, give them a minute to cool so the flavors settle, then take in the crisp browned cheese against the soft flaky fish inside, and let a couple be enough before you decide on more.
Frequently Asked Questions
Will these smell very fishy while baking?
Sardines do have a strong aroma, but baking them under a cap of cheddar mellows it considerably, and the browned cheese lends a savory, toasty smell that softens the fishiness. Draining the sardines well beforehand also keeps the odor down.
Can I use a muffin tin instead of a sheet pan?
Yes. Pressing the mixture into the wells of a well-greased or parchment-lined muffin tin gives you neat, uniform melts. They may need a minute or two longer to set since the sides are enclosed, so bake until firm and the tops are browned.
My mixture came out too loose to mound. What happened?
That almost always means the sardines were not drained enough or held extra oil. Press them firmly to shed the liquid before mashing, and if it is still slack, fold in a little more of the cheddar to tighten it up before portioning.
Can I eat these cold?
They are best warm, when the cheese is crisp and the inside is tender, but they hold together well cold straight from the refrigerator and make a fine grab-and-go bite. A few minutes in the oven brings back the crisp top if you have the time.