Weeknight Cheese Quiche

What You Need
1 cup sliced mushrooms
1 cup chopped onion
1 pkg. (10 oz.) frozen chopped spinach, thawed, drained
1/3 cup MIRACLE WHIP Dressing
1/3 cup milk
4 eggs
1 cup KRAFT Shredded Mozzarella Cheese
1 frozen prepared pie crust (9 inch)
1/4 cup OSCAR MAYER Real Bacon Bits
Make It

PREHEAT oven to 375°F. Spray nonstick skillet with cooking spray. Add mushrooms and onion; cook 5 min. or until tender. Stir in spinach; mix well.

MIX dressing, milk and eggs until well blended. Add spinach mixture and cheese.

POUR into pie shell; sprinkle with bacon bits. Bake 50 min. or until set and golden.