Fry up hamberger till almost done,drain grease add 1pkg of toco spice and 1cup of water,turn on low heat let simmer till water is gone.put hamberger mix in a 9by13baken pan,in a bowl add creamcheese at room temp n mash it all up than add a little at a time sourcream till its all smooth than add ur last pkgs of taco spice mix alltogether real well,than with a spoon spread over hamberger,than add ur cut up tomatoes,onions if u wish u can also use greenpeppers n lettuce cut up,than spread cheese all over it as much as u like,than bake in oven at 350deg,just till cheese is melted all ovens r differant,than take out of oven,grab ur tostitos n dig in n enjoy!!!yummy