I would recommend double sided pedals, like these :
http://www.wiggle.co.uk/us/mks-sylvan-touring-pedals/
resemble the type of pedals that were what everybody rode in cyclocross,
Lyotard 460D,
before the clipless pedals took the field,
Cross frame's higher BB's were to give the ground clearance
for those upside down clips..
with practice, toe flips the pedal and inserting shoe, within
a crank rotation,or 2, of the post barrier remount.
Of course a set of Shimano M324 duplex type, [welgo copy,too]
can be toe-clipped on the top side , have the SPD on the bottom.