Tuna Melt


  • 50g Mornay Sauce (see Croque Madame recipe) 
  • 100g Tuna, tinned and drained 
  • 40g Butter, unsalted
  • 1 Tbsp Red onion, diced
  • 2 Tbsp Mayonnaise 
  • 50g Strong Cheddar 
  • Whole meal Sandwich bread
  • ½ Lemon, juiced 
  • 20g Parmesan, to garnish 


  1. Preheat your oven at 180*.
  2. Mix together your tuna, red onion, lemon  and mayonnaise in a bowl. Season to taste. 
  3. Cut two slices of your bread about 1 finger thick. Butter all sides. Add your tuna filling inside and the cover in grated cheddar and close. 
  4. Between to slices of parchment paper cook your sandwich in a pan over a low heat until lightly toasted. Remove from the heat.
  5. Spread your mornay sauce on top of your lightly toasted sandwich and place in the oven for about 6 minutes until your sauce is bubbling on top and slightly browning. 
  6. Finish with some grated Parmesan to garnish.
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