Note: Also provide smaller recipe, probably using small box mac and cheese, 1 can tuna, fewer extra cheeses.
Prepare macaroni as directed: In large pot, bring 8 c. water to boil. Add macaroni. Boil 10 to 12 min. or until al dente. Drain, but do not rinse.
In large casserole dish, add tuna, green onions, Season Salt, Tabasco.
Add macaroni noodles.
Add cheese sauce from packet, grated Mexican cheese, and cubed sharp cheese.
Stir all ingredients thoroughly.
Bake at 350°F for 20 min. Let cool 5 min. Serve.