Preheat oven to 325 degrees. Coat a 9-inch spring form pan with cooking spray.
Mix together melted butter and tortilla chips.
Spread tortilla chips on bottom of pan; set aside.
Using a food processor or hand mixer, add cream cheeses and whip until smooth.
Mix in ricotta cheese, ½ cup cheddar cheese, taco seasoning and Tabasco sauce. Mix until well blended.
Add eggs and egg whites. Beat well.
Separate batter in half; add salsa to one half and Ortega Chilies and scallions to other half.
Using a rubber spatula, spread layers into spring form pan (on top of crushed chips).
Bake in 325 degrees oven for 45 minutes.
Remove from oven and spread with Nancy’s Skinny Ranch Dressing or fat-free sour cream. Sprinkle with ½ cup cheddar cheese and bake for 10 minutes more. Cool in pan.
Spread top with topping ingredients, salsa, scallions and black olives.
Refrigerate in spring form pan for at least 8 hours or overnight before serving.