PREPARATION:
Boil 500 gr couscous in 500 ml vegetable broth
add olive oil to the boiled couscous stirring well
let the couscous in a large pot
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Marinate the tuna slices in the wine for an hour, turning them frequently.
Drain them well and dredge them in oil seasoned to taste with salt and pepper,
then stick them with the garlic sliver, rosemary leaves, and pieces of sage
leaf. Grill the fish, brushing it often with the marinade and turning it several
times; figure about 10 minutes in all.
While the fish is cooking stir
the minced parsley and the lemon juice into the marinade, and serve it with the couscous alongside the tuna.