Prepare Katsu Sauce:In a small bowl, whisk together ketchup, Worcestershire sauce, soy sauce, mirin, sugar, and garlic powder. Set aside.
Prepare Chicken/Pork:Pound chicken breasts or pork cutlets to even thickness. Season with salt and pepper.
Bread the Cutlets:Dredge each cutlet in flour, dip in beaten eggs, and coat with Panko breadcrumbs. Press breadcrumbs firmly to stick.
Fry Cutlets:Heat vegetable oil in a skillet over medium heat. Cook cutlets for about 3-4 minutes per side until golden brown and cooked through. Transfer to a paper towel-lined plate and slice into strips.
Assemble Bowls:Divide cooked rice into bowls. Top each bowl with shredded cabbage, cucumber slices, julienned carrots, and green onions. Place sliced katsu cutlets on top.
Add Sauce & Garnish:Drizzle katsu sauce generously over the cutlets. Sprinkle with sesame seeds if desired.
Serve:Serve immediately and enjoy!