lean ground beef
(15.5 oz.) no-salt-added red kidney beans, rinsed
flour tortillas (6 inch), cut into 1-1/2-inch pieces
KRAFT Mexican Style Finely Shredded Four Cheese
green onion, chopped
Brown meat in large nonstick skillet on medium heat; drain. Return meat to skillet.
Add next 4 ingredients; stir. Bring to boil; simmer on medium-low heat 5 min.
Stir in tortilla pieces; top with cheese. Remove from heat; cover. Let stand 5 min. or until cheese is melted.
Top with sour cream and onions.