The secret to this dish is to cook the vegetables until they are on the edge of burning. Light and fluffy feta cheese and whole-grain tortillas complete the dish to make it a healthy and satisfying meal.
Heat a small nonstick skillet over medium high heat. Spray with nonstick cooking spray. Add the onion and let it cook, without stirring, for 2 minutes so that the onion just starts to brown.
Toss the onion in the pan and add the remaining vegetables. Sprinkle with salt and pepper and cover. After 2 minutes, add the basil and oregano and stir. Cover and cook for 2 more minutes.
Warm the taco shells in a skillet or in the microwave for a few seconds. Split the veggie filling between the two shells, sprinkle with feta, and finish with hot sauce.