I'm doing this, just not in my TC.
Now, I see some comments saying he shouldn't do this. I get it. But worth noting, it is becoming a trend in a lot of new Toyhaulers and fifth wheels to use a full size 25cu ft side-by-side house fridge.
Seems counter intuitive to use a 110v fridge in a Toyhauler one would presumably boondock with from time to time. But remember - they don't run constantly. The on/off cycle isn't that bad, and they're well insulated to meet all the newest energy savings guidelines.
I personally have an older, used 18 cubic foot fridge in my Shotwagon (Wells Cargo trailer). I use it for ice, chilled booze, but also to keep BBQ-ables cold until needed. I have 3 large batteries in just the trailer and can go for days via the Xantrex inverter. The inverter control panel says it draws 16amps@12v when running. Near zero when not - there is a frost free timer that does run 24x7, draws about 1amp@12v.
If the solar is going - net positive, I can get 40amps charge from my 600watts of solar.
We all know an RV fridge is expensive, but think about this - the $1,000 to $1,200 spent on an RV Fridge could by a nice solar set up, inverter, extra battery or two, and still pay for a small 110v fridge. Now he's got solar, and runs his fridge for free..... Like me.
I say try it, post your results.
Here's what I did (old pic, hadn't mounted the solar controller yet)


And before anyone hits me up on it - yes, that last 12v + lead cannot touch the aluminum case - there is a wood block crammed in there preventing any movement. The picture makes it look like it could, you'll just have to trust me.