Cook the Rice: Rinse rice under cold water. Combine rice, water, and salt in a pot. Bring to a boil, reduce heat, cover, and simmer for 15 minutes. Remove from heat and let sit covered for 5 minutes, then fluff.
Season the Chicken: Pat chicken dry and rub with olive oil. Mix paprika, smoked paprika, garlic powder, onion powder, oregano, salt, pepper, and cayenne. Coat chicken evenly with seasoning.
Cook the Chicken: Heat a skillet over medium-high heat. Cook chicken for 5–6 minutes per side until fully cooked and nicely blackened. Let rest for 5 minutes, then slice.
Make the Salsa: In a bowl, gently combine mango, avocado, red onion, cilantro, lime juice, and salt. Mix lightly to keep avocado intact.
Sauté the Vegetables: Heat olive oil in a skillet over medium heat. Cook zucchini, bell pepper, and broccoli for 5–7 minutes until tender with slight browning. Season lightly with salt and pepper.
Assemble the Bowl: Add rice to each bowl, top with sautéed vegetables, sliced blackened chicken, and a generous spoonful of mango avocado salsa. Serve immediately.