Place the food in a dish large enough to lie in a single layer.
Times, Sunday Times
Cut the tomatoes in half and arrange them in a single layer, cut-side up, in a large roasting tray.
Times, Sunday Times
Rather than having the single layer of eggshell seen in healthy eggs, there were two layers.
Times, Sunday Times
Swirl the oil round the pan and add the chicken in a single layer.
Times, Sunday Times
Place salmon fillets in single layer and scatter with remaining ingredients.
Times, Sunday Times