Faux Fried Fish Sandwiches

Name: Faux Fried Fish Sandwiches
Ingredients: 1 medium russet potato (about 8 ounces), peeled and cut into 1-inch chunks; 1 14-ounce can hearts of palm, drained and cut into 1-inch pieces; Kosher salt; 1/2 sheet nori (about 4 by 7 inches); 1 1/4 cups panko; 1 tablespoon mayonnaise; 1/2 teaspoon finely grated lemon zest; 1/2 teaspoon garlic powder; 1/2 teaspoon onion powder; 1/4 teaspoon paprika; Freshly ground pepper; 1 large egg; Vegetable oil, for frying; 4 slices American cheese; 4 sesame hamburger buns, split and toasted; Tartar sauce and lettuce, for topping; Potato chips, for serving