string sql = "from Recipe r " +
            "left join fetch r.Images " +
            "inner join fetch r.User " +
            "where r.Completed!=0";
        IList<Recipe> recipes = (IList<Recipe>)session.CreateQuery(sql)
            .SetMaxResults(20)
            .List<Recipe>();

string sql = "from Recipe r " +
       "left join fetch r.Images " +
       "inner join fetch r.User " +
       "where r.Completed!=0";

var recipes = session
    .CreateQuery(sql)
    .SetResultTransformer(CriteriaUtil.DistinctRootEntity)
    .SetMaxResults(20)
    .List<Recipe>();