Directions:
In a skillet, sauteed chopped veggies in 1 tsp olive oil until tender. Season with garlic powder, onion powder, and black pepper, to taste
Chop roast beef and add to skillet. Mix with vegetables to heat beef a little.
Cut the tortilla in half. Spread 1 tsp of mustard on either side of the tortilla
Layer ½ the cheese on one side of the tortilla. Add meat and veggie mixture, then layer the remaining cheese, and place the other side of the tortilla on top
Cook on both sides in a skillet (or in an oven with a broiler set to high)