Baked spaghetti with tuna Recipe | Food From Portugal

Ingredients

• 350 grams (12 1/3 ounces) canned tuna
• 250 grams (8 3/4 ounces) spaghetti
• 2 medium ripe tomatoes
• 1 large onion
• 125 grams (4 1/2 ounces) grated cheese
• 50 ml (1/4 cup) olive oil
• 1 egg yolk
• Pepper (to taste)
• 1 small onion to cook the pasta
• Coriander (to taste)
• 200 ml (about 1 cup) béchamel sauce
• Salt (to taste)