Fried Tuna with White Beans
Sprinkle the tuna steaks with lemon juice, salt and pepper.
Peel and finely chop the onion. Drain the beans.
In a pan with hot oil, cook the tuna on all sides for 2-3 minutes over low heat. Wrap in foil and keep warm.
Sauté the onions in the drippings until transparent. Pour in the vegetable stock and vinegar. Simmer for a couple minutes. Add the beans. Heat and season with salt and pepper. Stir in the parsley. Serve the tuna with the beans.