In small bowl, combine all sauce ingredients; blend well. Cover; refrigerate until serving time.
In medium saucepan, combine 1 1/3 cups water, rice and bouillon. Bring to a boil. Reduce heat; cover and simmer 10 minutes. Stir in peas and lemon peel. Cover; simmer an additional 5 to 10 minutes or until rice is tender and liquid is absorbed. Keep warm.
Meanwhile, in large skillet, combine 4 cups water, sliced onion, lemon and peppercorns. Bring to a boil. Reduce heat; simmer 5 minutes to blend flavors. Add salmon steaks; cover and simmer 7 to 10 minutes or until fish flakes easily with fork.
To serve, with slotted spoon, lift fish from liquid; place on serving platter. Serve with rice pilaf and dill sauce.