1. In a large nonstick skillet, heat oil over medium-high. Add tortillas and cook, stirring frequently, until golden and crisp, about 6 minutes. With a slotted spoon, transfer to paper towels to drain. Discard 1/3 of the oil from skillet. Add onion and chile and cook until onion is soft, about 5 minutes. Add tomato and cook until it begins to break down, 2 to 3 minutes. Season with salt and pepper.

2. Add eggs, tortillas, and cheese and cook, stirring constantly, until eggs are set, about 3 minutes. Serve with salsa or hot sauce if desired.