Shrimp Scampi Pan Bake

Name: Shrimp-Scampi Pan Bake
Ingredients: 1 ½ pounds Yukon Gold or russet potatoes, peeled and cut into ¼-inch rounds; 5 tablespoons extra-virgin olive oil; Kosher salt and freshly ground pepper; 1 bunch asparagus (about 1 pound), trimmed; 1 pound peeled and deveined large shrimp; 1 teaspoon dried oregano or marjoram; 1 tablespoon chopped garlic (from 2 to 3 cloves); 1 lemon, thinly sliced into rounds, plus wedges for serving