Step 1

Cook meat and onions in hot oil in large skillet on medium-high heat 10 min. or until meat is evenly browned, stirring frequently.

Step 2

Add broth, mushrooms and noodles; stir. Bring to boil; cover. Simmer on medium-low heat 10 to 12 min. or until noodles are tender.

Step 3

Stir in sour cream; cook 2 min. or until heated through, stirring occasionally.