La Narval Light Tuna Belly Ventresca Fillets in Olive Oil Ventresca de Bonito en Aceite de Oliva Size: 3.88oz (110 g) Ingredients: light tuna, olive oil, salt. Product of Spain La Narval tuna is cleaned, one by one, by the expert hands of their workers, which carefully select the best pieces and discard the rest. The tuna belly ventresca is a part of the tuna that has a high fat content, hence its tender and soft texture, ideal for salads or tapas with red pepper strips. Suggested recipe: tuna belly ventresca salad. Place some lettuce leaves on a plate. Add roasted peppers. Place the tuna belly fillets on top of the peppers. Dress with the olive oil from the can and vinegar. Ingredients: light tuna belly in olive oil, oak lettuce, roasted pepper strips, and vinegar.