Start by preheating your oven to 375°F (190°C). This ensures it’s ready to crisp those steak fries and melt all the cheese evenly once assembled.
Heat 2 tablespoons of olive oil in your skillet over medium heat. Add 1 pound of ground beef and cook until browned and no longer pink, breaking it apart with your spoon as it cooks. Drain any excess fat to keep the dish from becoming greasy.
Stir in the chili powder, cumin, garlic powder, onion powder, salt, and pepper. Then add the drained chili beans and tomato sauce. Mix well and let the mixture simmer for about 5 minutes to let the flavors meld together beautifully.
In your baking dish, spread the frozen steak fries evenly across the bottom. Pour the warm chili-beef mixture evenly over the fries, making sure to cover them completely.
Sprinkle the shredded cheddar and Monterey Jack cheeses evenly over the chili layer. This combo gives you a perfect melt with a balance of sharpness and creaminess that elevates the entire dish.
Place the casserole in the oven and bake for 25-30 minutes, or until the cheese is bubbly and golden and the fries are cooked through and crispy on the edges.
Remove from the oven and sprinkle diced green onions on top for a fresh, flavorful finish. Serve hot and enjoy!