Mock Macaroni and Cheese

3 cups farfel 3 Tbsp margarine 3 eggs 2 cups milk 80z shredded cheddar cheese 1 tsp salt 1/4 tsp pepper 1 1/2 cups sour cream Mix everything except farfel. Fold in farfel. Pour into 2-qt casserole. Bake at 350 degrees for 30-45 minutes.