Toss the shrimp with the lime juice in a bowl. Mix the garlic powder, onion powder, thyme, salt, red pepper and black pepper in a small bowl.
Sprinkle over the shrimp and toss to coat well.
Spray a large skillet with non-stick cooking spray.
Heat until hot. Add the shrimp and cook for 3 minutes, or until the shrimp are pink, stiring constantly.
Spoon into a serving dish. Chill, covered, for 1 houror longer.
Garnish with lime wedges.
Makes 15 servings.