Heat 2 teaspoons of the oil in a large pot over medium heat. Add half of the tortilla strips, stirring often, until crisp. Drain on paper towels. Repeat with remaining 1/2 teaspoon of oil and remaining tortilla strips and set aside.
Heat olive oil in a large saucepan over medium heat. Add minced onions and cook until onions begin to soften, about 4 minutes. Add garlic, chili powder, cumin and oregano and cook, stirring, for 1 minute. Stir in water, tomato soup, ..