In a small bowl, mix garlic salt, paprika, kosher salt, and black pepper.
Rub the seasoning mixture evenly over both sides of the chicken breasts.
To a large skillet over medium-high heat, add oil. Once the oil is hot and shimmering, add the chicken breasts. Cook for about 5 to 6 minutes per side, or until the internal temperature reaches 165°F. (Depending on the size of the chicken breasts, cooking times may vary.)
Transfer the cooked chicken to a plate and tent with aluminum foil to rest.
In a separate skillet over medium heat, melt butter. Once melted, stir in the garlic and cook for 1 minute.
Pour in the heavy cream and stir to combine. Bring to a gentle simmer, then reduce heat to low.
Add the Parmesan cheese, salt, and pepper. Stir until the cheese is fully melted and the sauce is smooth and thickened, about 3 to 4 minutes.
Add the cooked orzo to the skillet and stir until fully coated in the sauce. Keep warm over low heat.
Slice the rested chicken breasts into thin strips.
To serve, spoon the creamy orzo onto plates.
Top with sliced chicken, and garnish with fresh parsley.