Fried Green Tomato Benedict with Easy Cajun Hollandaise

Name: Fried Green Tomato Benedict with Easy Cajun Hollandaise
Ingredients: 2 teaspoons fresh thyme; 1 1/2 teaspoons paprika; 1 teaspoon garlic powder; 1 teaspoon onion powder; 1/2 teaspoon cayenne; 1/4 teaspoon celery salt; Freshly ground black pepper; 2 to 3 large green tomatoes; 1/2 cup all-purpose flour; Kosher salt and freshly ground black pepper; 1/4 cup milk; 2 large eggs; 1/2 cup yellow cornmeal; 1/2 cup panko breadcrumbs; Vegetable oil, for shallow frying; 10 tablespoons unsalted butter; 1 tablespoon lemon juice; 5 large egg yolks; 2 teaspoons distilled white vinegar; 8 large eggs; 8 slices Black Forest ham; 2 scallions, thinly sliced