Prepare the Mango Salsa by dicing one ripe mango, a small red onion, and an optional jalapeño for heat. Combine with chopped cilantro and lime juice. Rest for 10 minutes.

Marinate shrimp with olive oil, chili powder, cumin, garlic powder, salt, and pepper. Let marinate for 15-20 minutes, then cook in a skillet for 2-3 minutes on each side until pink and opaque.

Prepare the avocado by dicing it and cooking rice or quinoa according to package instructions.

Make the optional lime dressing by whisking together olive oil, lime juice, and adjustments to seasonings.

Assemble the bowls with warm rice or quinoa, top with avocado, shrimp, mango salsa, and drizzle with dressing. Add optional toppings if desired.