See 210.52(B)(3) "Kitchen Receptacle Requirements", which says "not
fewer than two small appliance branch circuits". Other sections use the
term "at least two". You can have as many as you want = 2, but if they
supply kitchen outlets, they are still small appliance branch circuits,
and must obey code. There are some exceptions, but none that would allow
supplying a light fixture on the same circuit as a refrigerator. As RBM
suggested earlier, there's nothing to prevent one from plugging in a
light (such as a night light) on the same circuit as the refrigerator
(unless it's a dedicated refrigerator circuit).


Just for clarification, you're asserting that any receptacle
that is in a kitchen, reguardless of where in the kitchen it is,
is therefore a small-appliance branch circut? (and thus
must be 20 Amps, GFCI protected, and not connected to anything
else?) (and excepting individual receptacles dedicated to single
fixed devices, like a freezer, refer, or stove?)

--Goedjn