In a large pot over medium-high heat, cook the ground turkey with the fajita seasoning and a splash of water, breaking it up as it cooks, until cooked through.
Add the onion, garlic, and bell peppers and cook until softened, about 4–5 minutes.
Stir in the orzo and let it toast for 2–3 minutes.
Stir in the salsa and beef broth and bring to a simmer. Cover and reduce the heat to medium-low.
Cook until the orzo is tender, about 10–12 minutes, stirring every few minutes to keep it from sticking. Add a splash more broth if it starts to look dry before the orzo is done.
Taste and season with more fajita seasoning, salt, and pepper as needed. Serve on its own or with your favorite toppings.