Combine the first 5 ingredients in a small bowl; set aside.
Combine paprika and next 6 ingredients in a large zip-top plastic bag. Add shrimp to the bag; seal and shake well to coat. Remove shrimp.
Heat a grill pan over high heat. Coat the pan with cooking spray. Add shrip; cook 2 minutes per side or until done (C-shaped, not O.)
Working with one tortilla at a time, heat tortillas over medium high heat directly on the eye of a burner for about 15 seconds on each side or until lightly charred. Divide the shrimp evenly among the tortillas; divide tomato, avocado, and reserved sauce evenly among the tacos.