In a mixing bowl, combine the shrimp with olive oil, minced garlic, lime juice, chili powder, ground cumin, salt, and black pepper. Allow to marinate for at least 15 minutes.

Cook your choice of rice or quinoa according to package instructions, about 15-20 minutes. Let sit for 5 minutes after cooking.

In a blender, combine dressing ingredients and blend until smooth. Set aside.

Sauté marinated shrimp in a non-stick skillet over medium heat for 3-4 minutes until opaque and curled.

Dice mangoes and avocados just before serving to maintain freshness.

In bowls, layer rice or quinoa, sautéed shrimp, diced mango, and avocado. Top with cilantro and optional toppings.