Pasta and Mushroom Soup

1 pound of pasta(shells,bowties etc..)
1/2 stick of butter
1/2 cup of milk
Pinch of salt
Pepper to taste
1 large can of cream of mushroom soup(26oz.)

Boil the pasta according to directions,drain pasta,put pasta into large pot,add all ingredients,mix well for about 5 min's on low,on stove-top. enjoy!