Ham and Cheese Pan Souffle

Name: Ham and Cheese Pan Souffle
Ingredients: 2 russet potatoes, peeled and cut into 1/2-inch cubes; Kosher salt; 6 large eggs, at room temperature, separated; 8 ounces manchego or aged provolone cheese, grated (2 cups); 1 tablespoon all-purpose flour; Freshly ground pepper; 4 tablespoons extra-virgin olive oil, plus more if needed; 1 onion, halved and thinly sliced; 2 Anaheim chile peppers, halved, seeded and thinly sliced; 1/4 pound boiled ham, cut into small cubes; 1 teaspoon paprika; 2 tablespoons chopped fresh parsley; 1 clove garlic, minced