Pat the shrimp dry using paper towels. Place them in a medium bowl and toss with 1 tablespoon olive oil, lime zest, lime juice, cumin, chili powder, salt, and pepper. Let them sit while you prep the remaining ingredients.
Next, make the dressing. In a small bowl, whisk together the sour cream, lime juice, chili seasoning, salt, and pepper until smooth. Taste and adjust seasoning if needed and refrigerate.
In a large skillet, heat olive oil over medium-high heat. Add the shrimp in a single layer and cook for 2 to 3 minutes per side until pink and opaque. Don't overcrowd the pan or they'll steam instead of sear.
Assemble the bowls. Divide the rice among 4 bowls. Top each with shrimp, and your favorite fixings. I used corn, diced tomatoes, avocado slices, green onions, and cilantro. Drizzle the creamy lime dressing over everything and serve with lime wedges on the side.
Notes
Storage: Store leftover shrimp, rice, and toppings in separate airtight containers in the refrigerator for up to 3 days. Reheat the shrimp and rice gently in the microwave or a skillet until warmed through, then add the fresh toppings and drizzle with the creamy lime dressing before serving. If possible, slice the avocado just before serving since it will brown during storage.The dressing will also keep well in the refrigerator for 3 to 4 days in a sealed container. Give it a quick stir before using.