I made the same sauce as the sandwiches, except I used vegetable broth and added a dash of fish sauce and a teaspoon of dijon mustard to up the umami factor. Instead of meat, I used one onion, 8 oz portabella mushrooms and 8 oz shitake mushrooms. I also subbed in spinach for the watercress. Yum!
If you use one baguette for 5 sandwiches, and divide your mushroom mixture into five servings, the mini-sandwihces are also only 3 WW Points each.