Bring 5 cups water and 2/3 cup lentils to a boil in a medium saucepan. Cover, reduce heat, and simmer for 20 minutes or until tender.
Drain and rinse with cold water; drain.
Arrange pita wedges in a single layer on a baking sheet; coat pita wedges with cooking spray.
Sprinkle evenly with coriander and 1/4 teaspoon salt.
Bake pita wedges at 425 for 10 minutes or until golden brown.
Combine cooked lentils, remaining 1/2 teaspoon salt, juice, tahini, hot pepper sauce, and garlic in a food processor; process until smooth. Spoon mixture into a bowl; cover and chill.