Corned Beef Hash Croquettes

Name: Corned Beef Hash Croquettes
Ingredients: 2 cups vegetable oil for frying, or as needed; 1/2 yellow onion, diced, divided; 1 yellow bell pepper, diced; 1 red bell pepper, diced; 1 orange bell pepper, diced; 6 ounces thick cut smoked ham steak, diced, divided; 1 (15 ounce) can HORMEL® Mary Kitchen® Corned Beef Hash; 1 tablespoon minced garlic; 1 egg, lightly beaten; 3 green onion tops, finely chopped; 1 cup mozzarella cheese, grated; 3/4 cup all-purpose flour; 2 eggs, beaten; 1 cup panko bread crumbs