how can i bind two tbls (returning by 2 select queries)

create proc [dbo].[SpCateProducts](@cate_id int)
    as
begin
    select sb.subcate_name, sum(p.qty)
    from subcategory sb 
      join product p on p.subcate_id = sb.subcate_id
    where sb.cate_id = @cate_id
    group by sb.subcate_name

        select top 1 pname from product join subcategory
    on product.subcate_id=
    (
        select top 1 subcate_id
        from subcategory
        where cate_id=3
        order by NEWID()
    )
end