Sheet Pan Tuna Melts

User Reviews

5

26 reviews
Excellent
  • Prep Time

    15 mins

  • Cook Time

    10 mins

  • Total Time

    25 mins

  • Servings

    4 sandwiches

  • Calories

    508 kcal

  • Course

    Main Course

  • Cuisine

    American

Sheet Pan Tuna Melts

Sheet Pan Tuna Melts use canned tuna mixed with minced red onion, celery, mayonnaise, lemon juice, salt, and pepper to create a creamy filling spread over buttered rye bread. Topped with tomato slices, optional red onion, and melted cheese, these open-faced sandwiches bake until golden and gooey. This recipe offers a savory and hearty take on the classic tuna melt, baking all sandwiches simultaneously on a sheet pan for convenience. The melted cheese and toasted rye add texture contrast to the creamy tuna salad.

Description

This recipe assembles tuna melts by blending drained canned tuna with finely chopped red onion and celery, mixed with mayonnaise and a splash of lemon juice for balance. The mixture is seasoned with salt and black pepper to taste. Buttered slices of rye bread form the base, topped with a generous layer of tuna salad. Tomato slices and optional thin red onion rings are layered on top, before adding one or two slices of cheese per sandwich. The sandwiches are baked in a 400°F oven until the bread is golden and cheese melted, without flipping, though finishing under a broiler can increase browning.

The sandwich's textures come from creamy tuna salad, juicy tomatoes, and melted cheese contrasted with crispy toasted rye bread. The method is practical for making multiple sandwiches at once on a sheet pan, suitable for a casual meal or gathering.

For an open-faced variation, omit the top bread slice and add extra cheese for more gooey coverage. Draining the tomato slices before assembly prevents sogginess.

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Ingredients

Servings
  • 12 ounces canned tuna well drained, any variety
  • 1/4 cup red onion minced
  • 1/4 cup celery finely chopped
  • 1/4 cup mayonnaise heaped measuring cup; adjust quantity as desired
  • salt fresh cracked pepper
  • black pepper fresh cracked pepper
  • lemon juice squeeze
  • 8 lices rye bread thin sliced
  • butter softened
  • 4-8 tomato thin sliced, drained on paper towel
  • 4-8 red onion thin sliced, optional
  • 8 lices cheese any variety, examples: provolone and smoked cheddar

Instructions

  1. Preheat oven to 400F Put the tomato slices on paper towels to drain.
  2. Add the drained tuna to a bowl and break apart with a fork.
  3. Add the onion, and celery and blend.
  4. Fold in the mayo and lemon juice.
  5. Blend well and season with salt and pepper to taste.
  6. Butter one side of 8 slices of rye bread
  7. Flip the bread over so the buttered side is against the pan. Put a scoop of tuna salad on the unbuttered side of 4 pieces of bread. Spread the tuna out evenly.
  8. Top each sandwich with 2 slices of tomato.
  9. Top the tomato with thinly sliced red onion.
  10. Top the onion with cheese, I use 2 slices for each sandwich. You can do more if you like.
  11. Top with the remaining bread, being sure the buttered side is on the outside.
  12. Bake the sandwiches for about 10 minutes until the bread is golden and the cheese is melted. There should be no need to flip the sandwiches, they should be golden on the bottom side. Note: if you like more browning you can switch to broil for the last minute or so, but watch carefully, the bread can burn quickly.
  13. Slice the sandwiches in half and serve immediately.

Notes

  • For open-faced tuna melts, skip the second bread slice and add an extra layer of cheese on top.

Nutrition Information

Show Details
Calories 508kcal (25%) Carbohydrates 33g (11%) Protein 36g (72%) Fat 25g (38%) Saturated Fat 9g (45%) Trans Fat 1g (50%) Cholesterol 68mg (23%) Sodium 1134mg (47%) Potassium 394mg (8%) Fiber 4g (16%) Sugar 3g (6%) Vitamin A 394IU (8%) Vitamin C 1mg (1%) Calcium 352mg (35%) Iron 3mg (17%)

Nutrition Facts

Serving: 4sandwiches

Amount Per Serving

Calories 508 kcal

% Daily Value*

Calories 508kcal 25%
Carbohydrates 33g 11%
Protein 36g 72%
Fat 25g 38%
Saturated Fat 9g 45%
Trans Fat 1g 50%
Cholesterol 68mg 23%
Sodium 1134mg 47%
Potassium 394mg 8%
Fiber 4g 16%
Sugar 3g 6%
Vitamin A 394IU 8%
Vitamin C 1mg 1%
Calcium 352mg 35%
Iron 3mg 17%

* Percent Daily Values are based on a 2,000 calorie diet.

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Overall Rating

5

26 reviews
Excellent

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