Tuna And Potato Chip Casserole(Microwave)  
["3 c. crushed potato chips", "1 (10 3/4 oz.) can cream of mushroom soup", "1 (6 1/2 oz.) can tuna, drained", "1 (2 oz.) jar pimiento-stuffed green olives, sliced", "1 (4 oz.) can mushroom stems and pieces, drained", "1/2 c. shredded Cheddar", "1/2 c. milk", "2 Tbsp. chopped onion"]
["Place 1/3 of crushed chips in 1 1/2-quart casserole.", "In medium bowl combine remaining ingredients except chips.", "Spread half of tuna mixture over chips.", "Top with another 1/3 of chips and remaining tuna.", "Sprinkle remaining chips over top.", "Microwave at High 4 to 6 minutes or until heated, rotating dish 1/4 turn after half the cooking time."]
["potato chips", "cream of mushroom soup", "tuna", "green olives", "mushroom stems", "Cheddar", "milk", "onion"]