cup sliced fresh mushrooms
pkg. (10 oz.) frozen chopped spinach, thawed, drained
cup MIRACLE WHIP Dressing
cup KRAFT Shredded Mozzarella Cheese
frozen pie crust (9 inch), thawed
cup OSCAR MAYER Real Bacon Bits
HEAT oven to 375°F. COOK mushrooms and onions in large nonstick skillet sprayed with cooking spray on medium-high heat 5 min. or until crisp-tender. Remove from heat; stir in spinach. WHISK eggs, milk and dressing in medium bowl until blended. Add spinach mixture and cheese; mix well. Pour into crust; sprinkle with bacon. BAKE 50 min. or until knife inserted in center comes out clean.