I understand Shimano makes a nice SPD/flat pedal that works with their MTB-style cleats, but do they (or anyone else) make a nice SPL-SL pedal that is compatible with the Road/triangle cleat?

For clarification:
Shimano SPD-SL cleat & pedal (what I'm looking for)



Shimano SPL (MTB/Touring-style) cleat & pedal (which is the only thing I've been able to find).



Only I'd like it with a box/flat/non-clipless option, as I currently have with these old Look pedals:



These pedals are for my commuter/dog-taxi/liquor-store raider. Sometimes I need clipless, sometimes not.