If using wooden skewers, soak them in water for at least 20 minutes to prevent burning.
In a small bowl, whisk together the olive oil, lime juice, lime zest, honey, garlic powder, red chili flakes, sea salt, and black pepper to create the marinade.
Peel and devein the shrimp, then pat them dry with a paper towel.
Cut the mango and red bell pepper into 1-inch cubes suitable for skewering.
Thread the shrimp, mango, and bell pepper onto the skewers, alternating between each ingredient.
Brush the prepared marinade generously over all sides of the skewers.
Preheat a grill or grill pan over medium-high heat and lightly oil the grates.
Grill the skewers for 2-3 minutes per side, or until the shrimp are pink and opaque and the mango has slight char marks.
Serve the hot skewers over a bed of warm cooked quinoa and garnish with extra lime wedges if desired.