Heat oven to 350. Spray a 3-quart casserole dish w/ cooking spray. Set aside. In medium saucepan, bring 1 cup water to boil. Stir in red bell pepper, onion and rice. Reduce to low and simmer, covered until water is absorbed, about 20 min.
In lg bowl, combine stuffing mix, 2 cups water. Stir in turkey, eggs and 1/2 the soup. Stir in rice mix. Spread mix in casserole dish. Bake, uncovered 40 min.
In small saucepan, stir together remaining soup, sour cream and milk. Cook over low heat until heated through, stirring occasionally. Cut casserole into squares. Spoon sauce over squares.