Heat oven to 350F (175C). Butter a
10-cup (2.5-L) casserole. Put a pan of hot water - 1 inch (2.5cm)
deep - large enough to hold casserole in oven. Break eggs into
prepared casserole and beat to blend with a fork. Stir in milk,
sugar, vanilla and salt, blending well. Add rice and raisins and
stir. Sprinkle generously with nutmeg. Set casserole in pan of hot
water in oven and bake until set, about 1 hours and 25 minutes. Stir
with a fork after first 30 minutes baking. Serve warm or cold.