1⁄3 Cup (5.33 tbs) (No More Than 8 Calories Per Tablespoon)
Sliced green onion
1⁄4 Cup (4 tbs)
Combine beans, mushrooms, salad dressing, green onion, 1/4 teaspoon salt, and the pepper; toss.
Refrigerate 2 hours, tossing occasionally Cut tops off tomatoes, scoop out pulp, leaving 1/4-inch shells.
Invert shells on paper toweling; chill.