Open can, discard lid. Hold a small wire mesh strainer or colander over an empty sink; dump can of tuna into
strainer, hold over sink until all of the liquid has drained. (To be sure all of the liquid has drained, gently
press on tuna in strainer with the back of a spoon.) Place tuna in a bowl; separate into bite-size pieces with a
fork. Toss with green onions, if using; set aside. Bring water to boil in a large saucepan; stir in macaroni
noodles, boil 7 to 9 minutes. Drain noodles thoroughly, but do not rinse. Return to saucepan, stir in margarine
until barely melted. Sprinkle with cheese sauce packet, stir in milk until sauce is creamy. Gently stir in tuna
mixture until evenly coated.
