Combine onions and 1 Tbsp. dressing; let stand 10 min.
Meanwhile, cook mushrooms in remaining dressing in skillet on medium-high heat 10 min. or until tender.
Spread toast slices with mayo, then mustard. Fill with spinach, onions, meat, mushrooms and cheese to make 2 sandwiches.
Enjoy this delicious sandwich with a mixed green salad and fresh fruit.
Prepare using Artisan rosemary bread or your favorite bread.
Calories From Fat
% Daily Value*
Total Fat 21g
Saturated Fat 7g
Trans Fat 0.5g
Total Carbohydrates 31g
Dietary Fibers 5g
* Percent Daily Values are based on a 2,000 calorie diet.
Makes 2 servings.
* Nutrition information is estimated based on the ingredients and cooking instructions as described in each recipe and is intended to be used for informational purposes only. Please note that nutrition details may vary based on methods of preparation, origin and freshness of ingredients used.