Err, make it yourself!
Get a wholemeal roll, either slice it in half or cut it in slices like it was a loaf. Beat some butter up till soft, crush a clove of garlic into it (don't need a garlic press, peel the clove, lay it on your chopping board flat and lay the blade of a knife on top of it and force it down with both hands so it squishes) bung that into the butter with a bit of chopped parsley, or chopped chives or nowt, mix it up well and butter the bread, stick back together back into a roll and foil it, lob in the top of a hot oven till warmed through. Done.
Or you can do a whole baguette or 2 and freeze in portions of a couple of slices in foil. Just heat up whatever amount you need at the time!