Spray 10-inch ovenproof skillet with cooking spray. In skillet, mix chili, cream cheese, 1 cup of the Cheddar cheese and the pepper sauce. Heat over medium-high heat 2 to 3 minutes, stirring constantly, until cheese is melted and mixture is bubbly. Top with remaining 1 cup Cheddar cheese. Bake uncovered about 10 minutes or until cheese is melted. Top with blue cheese and green onions. Serve warm with tortilla chips.