PREHEAT oven to 400°F. Cook meat with Taco Seasoning Mix as directed on package.
SPREAD each of 5 of the Tortillas with 2 Tbsp. of the beans, 1/4 cup of the seasoned meat and 2 Tbsp. of the cheese; top with second tortilla and additional layers of beans, meat and cheese. Sprinkle with tomatoes. Place on baking sheet.
BAKE 8 to 10 min. or until pizzas are heated through and cheese is melted. Top with Salsa and sour cream.
