In medium bowl, mix together olive oil, garlic and Southwest Chipotle Mrs. Dash. Toss shrimp into this mixture, coating shrimp well. Set aside to marinate while you put salsa together. Shrimp mixture can also be made ahead of time and marinated in refrigerator.
Mix pineapple salsa ingredients in a small bowl. Cover and set aside.
Heat skillet over medium heat. Add shrimp mixture to pan and cook approximately 4 minutes, turning shrimp once, until heated through. (Shrimp can also be grilled in a vegetable type grill basket). Assemble tacos by dividing shrimp mixture among the 4 tortillas. Top with 1/4 cup shredded cabbage. And finally top each taco with 1/4 of the salsa mixture. Each taco will be overstuffed.