Pat the chicken pieces dry and season them with 1/2 teaspoon salt and 1/4 teaspoon pepper.
Heat 1 tablespoon olive oil in a large skillet over medium-high heat.
Add the seasoned chicken to the skillet and cook, stirring occasionally, until cooked through and no longer pink, about 6–8 minutes.
Add 2 teaspoons minced garlic, 1 teaspoon paprika, 2 teaspoons dried Italian seasoning, and 1 cup chopped sun-dried tomatoes to the skillet and cook for 2 minutes, stirring to combine.
Stir in 1 cup dry orzo and 2.5 cups chicken broth, bring the mixture to a boil, then reduce heat to a simmer and cover.
Simmer, covered, until the orzo is tender and has absorbed most of the liquid, about 10–12 minutes.
Pour in 1 cup half-and-half and stir; if the mixture seems dry, add a little more half-and-half to reach a creamy consistency.
Stir in 1 cup grated Parmesan cheese and 1/2 cup chopped fresh basil until the cheese melts and the basil wilts; adjust seasoning with salt and pepper to taste.
Serve immediately.