This is a satisfying easy salad to make that celebrates the best of spring's bounty. It's also eminently interchangeable with other ingredients. If you can find fiddleheads at the market, you can buy them online, or just substitute asparagus tips. Can't find miner's lettuce? Use baby spinach. Farro baffling you? (It's a kind of ancient wheat) Use barley. At a loss for finding ramps? Use the white part of spring onions. If you do use spring onions, dunk them in some nice vinegar for an hour or so to get some acidity going. The pickled ramps provide the only acidity in this dish, so it's important.
Do your best to find the morels. They are wonderful, and worth it for a special dish like this. If you absolutely cannot find them, use another nice mushroom from the market; my second choice would be oyster mushrooms. Try to avoid the white buttons for this recipe, though.