""An easy casserole using mac-n-cheese from a box with a can of tuna, mushrooms, and bread crumbs on top."..."
INGREDIENTS
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6 cups water
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1 (7.25 ounce) package macaroni and cheese dinner mix
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1/4 cup margarine, cut into pieces
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1/4 cup milk
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1 (6 ounce) can tuna, drained and flaked
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1 (4.5 ounce) can sliced mushrooms, drained
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1 cup bread crumbs