In a bowl, combine shrimp with olive oil, chili powder, garlic powder, paprika, cayenne, salt, and pepper.
Heat a skillet over medium-high heat and cook the shrimp for 2-3 minutes per side until pink and cooked through. Set aside.
For the mango salsa, mix together mango, red bell pepper, red onion, jalapeño, cilantro, lime juice, and salt. Set aside.
For the lime-chili sauce, whisk together mayonnaise, lime juice, honey, and chili powder.
To assemble the bowls, divide the cooked rice or quinoa between bowls.
Top with shrimp, avocado slices, and mango salsa.
Drizzle with lime-chili sauce and garnish with cilantro and lime wedges.