The dressing is key to these sandwiches. I’m not a mustard fan but honey mustard is a whole other story. The recipe originally called for boiled sweet potatoes; we found them bland, so we brushed them with oil and honey and oven-roasted them. Delish. Not to mention good for you too. Directions Toss sweet potato slices in a few tablespoons each of olive oil and honey. Season with salt and pepper to taste. Cook slices in oven until tender, about 15 minutes, flipping slices half way through. Whisk together honey mustard, mayonnaise, and poppy seeds in a small bowl. To construct the sandwiches, first spread half the poppy seed mixture on 2 of the bread slices, then place half of the onion, avocado, and tomato slices on top of each slice; sprinkle lightly with salt and pepper. Add a layer of sweet potato slices, cheese and lettuce. Top with remaining bread. Slice each sandwich in half, securing each half with a toothpick. Serve with sliced dill pickles and a handful of baked chips.