#1 Heat oven to 425°F #2 Crumple 4 large sheets of foil to make 4 (3-inch) balls place on baking sheet. Place 1 tortilla over each ball spray with cooking spray. Bake 6 to 8 min. or until tortillas are golden brown. Tortillas will drape over balls to form shells as they bake #3 Meanwhile, cook meat with taco seasoning mix as directed on package #4 Fill shells with lettuce, meat mixture, cheese and tomatoes just before serving. Drizzle with dressing.