Layered Enchilada Casserole

1 lb. lean ground beef

1 large onion, chopped

2 cups Thick 'N Chunky Salsa

1 can (15 oz.) black beans, rinsed

1/4 cup Zesty Italian Dressing

2 Tbsp. Taco Seasoning Mix

6 flour tortillas (8 inch)

1 cup Sour Cream

1 pkg. (8 oz.) Mexican Style Finely Shredded Four Cheese

Preheat oven to 400ºF.

Brown meat with onions in large skillet on medium-high heat; drain. Stir in next 4 ingredients.

Arrange 3 tortillas in single layer on bottom of 13x9-inch baking dish. Cover with layers of half each meat mixture, sour cream and cheese. Repeat layers; cover.

Bake 40 min. or until casserole is heated through and cheese is melted, uncovering after 30 min. Let stand 5 min.

When ready to serve, heat oven to 400ºF. Bake, covered, 1 hour. Remove foil. Bake an additional 15 to 20 min. or until casserole is heated through and cheese is melted. Let stand 5 min. before cutting to serve. To decrease the baking time, thaw frozen casserole in refrigerator overnight, then bake, uncovered, 45 min. or until casserole is heated through and cheese is melted.