Microwave Tuna Casserole - cooking recipe

Ingredients

1 (6 1/4 ounce) box macaroni and cheese mix
4 tablespoons butter, cut in small pieces (half a stick)
1 (10 3/4 ounce) can cream of mushroom soup
1 (5 ounce) can tuna fish, drained
1 tablespoon lemon juice

Preparation

Put the macoroni from the box into a Microwave Popcorn maker -- I use a Anchor Hocking model.
Add enough water to cover the noodles (about 2 cups). Cook noodles on high for 10 minutes or until tender -- then drain.
Return the drained noodles, butter or margarine, the contents of the cheese package, entire can of cream of mushroom soup (DO NOT add water). the lemon juice and the entire can of tuna.
Heat on high for 1 minute or until hot.