01 -  Combine cooled rice, steamed broccoli, shredded cheddar, Parmesan, 2 eggs, garlic powder, onion powder, salt, and black pepper in a large mixing bowl. Stir thoroughly until mixture is cohesive and sticky. 
 02 -  Using damp hands, portion the mixture and form into 1 1/2-inch balls, pressing firmly. Aim for approximately 20 evenly-sized balls. 
 03 -  Organize three shallow bowls: one filled with flour, one with the 2 beaten eggs, and one with panko. Arrange a tray nearby for coated balls. 
 04 -  Individually roll each rice ball in flour, dip in egg, and coat thoroughly with panko. Place breaded balls onto the tray in a single layer. 
 05 -  Pour 2 inches of vegetable oil into a deep pan or fryer. Preheat oil to 350°F (175°C) using a thermometer for accuracy. 
 06 -  Fry rice balls in batches without overcrowding the pan, cooking each for 3 to 4 minutes. Turn gently until all sides are golden and crisp. Remove with a slotted spoon; drain on paper towels. 
 07 -  Serve hot with preferred dipping sauces such as marinara, ranch, or honey mustard.