Tomato and Tuna Toast

My ideal dish for the next three weeks

If you’ve been to Rome in the last few years, there’s a good chance you’ve been to Roscioli. Nearly a year ago on our honeymoon my husband and I went by for lunch and I’ve been thinking about one dish in particular since. It was a plate of olive oil-poached tuna, lightly pickled onions, and roasted peppers. Like many Italian dishes, it was impossibly si…