I came up with this recipe since my girlfriend and I started eating healthier and she had never had enchiladas. The mushrooms give a great meaty texture and keep the calorie count down. Feel free to substitute regular sour cream for the fat-free or regular tortillas for low-carb. Also, you can kick it up with some pepper or hot-sauce if you like things a bit spicier. The batch we made ended up producing enchiladas that were about 180 calories a piece with sauce and cheese included.