Slice chicken breast horizontally into 2 thinner fillets. Pound each to ¼-inch thickness.
Season lightly with salt and pepper.
Dredge in flour, dip into beaten egg, and coat with breadcrumbs. Press breadcrumbs firmly so they stick.
Heat oil in skillet over medium heat. Fry schnitzel 3–4 minutes per side until golden brown and crisp. Drain on paper towel.
Heat small skillet with ½ tsp oil or butter.
Crack egg and fry until whites are set and yolk cooked to your liking (slightly runny is traditional).
Butter bread slices or roll.
Toast on hot skillet or toaster until golden.
Place schnitzel on bottom slice of bread.
Add cheddar cheese, letting heat from schnitzel soften it.
Top with beetroot slice, fried egg, and a drizzle of BBQ sauce.
Cap with top bread slice or roll.
Serve immediately, warm and stacked.
Pair with strong coffee or tea for a true Aussie breakfast experience.
Optional: add crispy hash browns or grilled tomato on the side.