Shepherd's Pie

I'm still waiting for it to cool, but the shepherd's pie I just made mostly following this recipe smells amazing. Changes made were - fish sauce for Wostershire sauce, 10 ounce bag of frozen vegetable mix (carrots, corn, peas and green beans) for 1/2 of cup each of carrots, peas and corn, my recipe for sour cream potatoes (plus couple of shakes of garlic powder in the potatoes), 1+ tsp mural of flavor for rosemary (just didn't have any in the house). So mostly following the recipe.