
Peel the garlic and onion then chop. Peel the tomatoes previously blanched, deseeded and chopped. Heat 3 tablespoons oil in a skillet and fry the garlic and onion for 3-4 minutes.
When the onion is translucent, add the chopped tomatoes and grated carrot, sprinkle with a pinch of salt and cook slowly until sauce thickens, about 20 minutes. Remove from heat and set aside. Season the tuna with the fish soup cube -30% salt, fry it slightly in another pan with 2 tablespoons oil and place over tomato sauce. Add to pan fry the fish in the lemon juice, stir and pour into the pan with fish and tomato. Crush the cumin, basil and oregano with a little salt and remaining oil and add the chopped to the pan. Serve hot tuna, accompanied with sauteed peppers.