Reading other comments I think I'll try green olives or some pesto. Your Classic recipe is what we made at our family restaurant, except no onion, and only yellow prepared mustard ( Plochman's my go-to)
And when Shedd's Old Style Sauce (later Aunt Nellies) was still around, my Mom would put a smidgen of that in it. Man, SO good.
Reading other comments I think I'll try green olives or some pesto. Your Classic recipe is what we made at our family restaurant, except no onion, and only yellow prepared mustard ( Plochman's my go-to)
And when Shedd's Old Style Sauce (later Aunt Nellies) was still around, my Mom would put a smidgen of that in it. Man, SO good.