Tuna Melt Sandwich

• • 100 g canned tuna
• • 2 slice whole grain bread
• • 30 g low-fat cheese
• • 15 g mayonnaise
• • 30 g onion
• • 50 g tomato
• • 10 g olive oil

Instructions

1. Mix the tuna, mayonnaise, and chopped onion together.
2. Spread the mixture on a slice of bread, add cheese and tomato.
3. Top with another slice of bread and grill in olive oil until the cheese melts.