New York Times

Breton Tuna and White Bean Gratin

Like a tuna casserole given a makeover, this pantry dinner is modern, sleek and a whole lot more elegant than anything your grandmother used to serve. The key is using really good-quality tuna, preferably the kind packed in extra-virgin olive oil and imported from Italy or Spain. If you can find a large 7-ounce can, use that. But the more typical size (5 3/4 ounces) will work perfectly well if you can’t. Serve this over toasted slices of crusty bread that you’ve drizzled with oil. A crisp green salad or platter of sliced, salted cucumber is all you need to make a satisfying meal.