Preheat your oven to 425°F (220°C). Wash and cut the russet potatoes into thick fries. Toss them in a bowl with olive oil, garlic powder, salt, and pepper until evenly coated. Spread the fries in a single layer on a baking sheet.
Bake in the preheated oven for 30-35 minutes, flipping halfway through, until golden brown and crispy. Remove from the oven and set aside.
In a large skillet, heat a tablespoon of olive oil over medium-high heat. Add the sliced sirloin, cooking for about 3-4 minutes until browned. Add the sliced green bell pepper and onion to the skillet, cooking for an additional 4-5 minutes until vegetables are tender. Season with salt and pepper.
Layer the cooked fries on a large serving platter. Spoon the beef and vegetable mixture evenly over the fries. Sprinkle shredded provolone cheese generously on top.
Return the dish to the hot oven for an additional 3-5 minutes, or until the cheese is melted and bubbly.
Remove from the oven, garnish with freshly chopped parsley, and serve immediately while hot.
Notes
Serve immediately for the best texture and flavor.