This is a good recipe:
PAN-ROASTED TUNA WITH WHITE BEANS
BEANS:
1 Cup dried small white beans
2 Tablespoons unsalted butter
1 Medium onion, finely chopped
1 Large carrot, cut into ⅓-inch dice
1 Celery rib, cut into ⅓-inch dice
1 Large clove garlic
1 Teaspoon dried thyme
½ Teaspoon dried oregano
1 Bay leaf
3 Medium yellow or red bell peppers, cut into ⅓-inch dice
4 Cups chicken broth
Salt & black pepper to taste
2 Tablespoons finely chopped Italian parsley
2 Teaspoons minced fresh rosemary
2 Tablespoons olive oil
2 Tablespoons sherry vinegar
TUNA:
1 Tablespoon olive oil
4 6-ounce tuna steaks, about 2 inches thick
Salt & coarsely ground black pepper
BEANS:
Rinse beans. Either soak overnight in 4 cups water, OR bring to boil, turn off heat, & cover for 1 hour. Drain & rinse.
Melt butter in 4-quart saucepan and saute onion, carrot, & celery until softened, about 5 minutes.
Add garlic, thyme, oregano, bay leaf, & bell peppers; saute another minute.
Add broth and beans. Bring to boil, partially cover, and simmer until beans are tender, about 1 hour. Some liquid should remain.
Add salt and pepper to taste.
Just before serving, stir in parsley, rosemary, olive oil and vinegar.
TUNA:
Preheat oven to 450E.
Season one side of tuna with salt and lots of pepper.
Heat oil in heavy cast-iron skillet.
Saute fish over high heat for 1 to 2 minutes per side until just browned on all sides.
Transfer skillet to oven and cook fish for another 6 minutes or until it feels firm but is still pink in center.
SERVICE:
Spoon beans onto plates and set the tuna on top, peppered side up.
Serve with medium-bodied, fruity red wine.
Makes four servings.