Cut chicken breasts into 1/2 inch cubes, set aside. Peel and clean shrimp, set aside. In a large skillet, saute' garlic, onion, shrimp and chicken in the butter; add remaining ingedients except the rice. Once shrimp turns pink, add long grain rice, stir to mix everything together, then add chicken broth. Under medium high heat, bring everything to a boil then lower heat to low, cover and continue to cook until rice is tender. Serve hot.