Ingredients:

  • 2 cans (5 oz each) solid white albacore tuna, drained
  • 1/2 cup real mayonnaise
  • 1 tbsp Dijon mustard
  • 1/2 cup celery, finely diced
  • 1/4 cup red onion, minced
  • 2 tbsp fresh lemon juice
  • 1/2 tsp freshly cracked black pepper
  • 1/4 tsp kosher salt
  • 4 large everything bagels, sliced lengthwise
  • 2 tbsp unsalted butter, softened
  • 8 slices sharp cheddar cheese
  • 1 large tomato, sliced into 8 thin rounds
  • Fresh dill for garnish

Instructions:

  1. Preheat your oven to 400°F (200°C) and line a large rimmed baking sheet with parchment paper. Lightly butter the cut sides of the sliced bagels.
  2. Place bagels butter-side down on the sheet pan and toast in the oven for 4–5 minutes until the edges are golden and fragrant.
  3. In a medium mixing bowl, combine drained tuna, mayonnaise, Dijon mustard, diced celery, minced onion, lemon juice, salt, and pepper. Use a fork to flake the tuna and mix until creamy.
  4. Flip the toasted bagels over. Place one tomato slice on each bagel half. Top with a generous scoop of the tuna mixture and a slice of cheddar cheese.
  5. Return the sheet pan to the oven and bake for 5–7 minutes. Switch to the broiler for the last 60 seconds until the cheese is bubbly and browned.
  6. Garnish with fresh dill and serve the Sheet Pan Bagel Tuna Melts made fresh while warm.