Take one tortilla and bake in a tortilla bowl pan for 6-8 minutes at 375. Let cool upside down for 5 minutes. You can also serve this dip in a regular bowl, if desired.
In a large bowl, combine cream cheese, mayo or Miracle Whip, sour cream, garlic powder, chili powder and tabasco. Cream until well blended.
Place mixture in tortilla bowl. Top with salsa, shredded cheese and scallion, if desired. Serve with tortilla chips. The Tostitos scoops are fun, because they look like little tortilla bowls. I like to use either the Jack and Colby blend or Mexican blend cheese for this dip.