Combine slaw mix, mayonnaise, water, lime juice, chipotle chilies and 1/4 tsp salt in a small bowl; set aside.
Coat a large nonstick skillet with cooking spray; heat over medium-high heat. Add tortillas; cook until crisp and golden, 2-3 minutes per side. Remove tortillas; set aside.
Off heat, coat same skillet with cooking spray; heat over medium-high heat. Sprinkle shrimp with cumin and remaining 1/4 tsp salt; add shrimp to skillet. Cook shrimp until lightly browned and cooked through, turning once, 3 minutes; remove from heat.
Place a tortilla on each of 4 serving plates; evenly divide slaw mixture over top. Top each with 3 shrimp; serve.