Preheat your grill or grill pan over medium-high heat. In a large bowl, combine shrimp, asparagus, olive oil, garlic powder, paprika, salt, and pepper. Toss until everything is well coated.
Thread the shrimp onto skewers for easier grilling. If using wooden skewers, soak them in water for 30 minutes to prevent burning.
Grill the shrimp and asparagus for about 2-3 minutes per side, or until the shrimp are opaque and the asparagus is tender-crisp. Remove from heat.
In a small bowl, mix together sour cream, mayonnaise, minced garlic, lemon juice, and a pinch of salt to create the creamy garlic sauce.
To assemble the bowls, divide the cooked rice among four bowls, top with grilled shrimp and asparagus, and drizzle with the creamy garlic sauce. Garnish with fresh parsley.