Author's note: Rich and cheesy tasting without a lick of cheese (and with plenty of nutritional yeast), this comforting and easy tomato and herb-drenched baked farro casserole may bump your favorite pasta bake down a notch or two. Farro is a rustic, chewy variety of whole-kernel wheat rich in protein and fiber, and usually stocked in nice groceries with other heirloom grains, such as quinoa, or look wherever Mediterranean pastas and rices are sold.
Shannon's notes: I've reduced the oil for the shallots and garlic by half with no ill effects. Also, I found it easier to pre-mix the olive oil with the walnuts rather than drizzling it on afterward. My only other change was to used crushed rather than diced tomatoes.