Place the shrimp in a mixing bowl and add allspice, turmeric, chili flakes, paprika, olive oil, salt, and black pepper. Toss everything together until the shrimp are evenly coated. Let them sit for a few minutes while preparing the sauce.
Add Greek yogurt, parsley, mint, tarragon, dill, chives, jalapeño, avocado, garlic, lemon zest, lemon juice, olive oil, salt, and pepper to a blender. Blend until completely smooth and creamy. Taste and adjust seasoning if needed.
Heat a large skillet over medium heat and add the seasoned shrimp. Cook for about 7–8 minutes, turning halfway through cooking. The shrimp should become pink, slightly golden, and fully cooked.
Transfer the cooked shrimp to a bowl and toss with chopped chives and fresh lemon zest. This simple step adds brightness and enhances the overall flavor. Set the shrimp aside while cooking the vegetables.
Using the same skillet, add the sliced onion and cook over medium heat. Stir occasionally until the onion becomes soft and lightly caramelized. This usually takes around 2–3 minutes.
Add the sliced bell peppers to the skillet with the onions. Continue cooking for another 3–4 minutes until the peppers are tender but still retain a slight crunch. Their natural sweetness balances the spicy shrimp perfectly.
Divide the cooked rice among serving bowls. Arrange the sautéed vegetables and seasoned shrimp over the rice. Make sure each bowl gets a colorful mix of ingredients.
Generously drizzle the creamy herb sauce over each bowl. Finish with extra chopped chives and lemon zest for a fresh, vibrant presentation. Serve immediately and enjoy.