Add diced chicken, garlic, and onion to the crockpot. Season lightly with salt and black pepper.
Stir in rinsed rice, chicken broth, soy sauce, and sesame oil until evenly combined.
Cover and cook on LOW for 3–4 hours or HIGH for 2–3 hours, until rice is tender and liquid is mostly absorbed.
Stir in frozen peas and carrots. Cover and cook for 15–20 minutes until vegetables are heated through.
Pour beaten eggs into the crockpot and stir gently. Cover and cook for 10–15 minutes, stirring once, until eggs are fully set.
Taste and adjust seasoning with additional soy sauce or pepper if needed. Garnish before serving.