Tuna melt muffins with melted mozzarella

Creamy tuna piled onto toasted muffin halves and grilled until the cheese bubbles. A warm, filling snack built from cupboard staples.

In one portion

These are the figures for one medium portion. In Susten, each person at your table gets their own portion size.

Where the calories come from

Susten matches every ingredient to a Tesco product. Your shopping list names each one, with its price.

£1.17a portion

We base this on how much of each product the recipe uses. Half a pack costs half the price.

We last updated these Tesco prices on 7 October 2026.

4 portions1 portion

Turn the oven on to 220°C (fan 200°C) and put the muffin halves in straight away, cut side up on a lined tray, so they toast as it heats.
Meanwhile, mix the mayonnaise, cornichons, celery and most of the spring onion in a bowl. Flake in the tuna, season and stir it all together.
Pile the tuna onto the muffins, pressing it down firmly, and cover with the mozzarella slices.
Bake for about 10 minutes more, until the mozzarella has melted and browned in patches.
Eat warm, with the spring onion you saved scattered on top.