The Gadgeteer Thermocouple module is a simple SPI device but the GHI team have set it up as needing an X or Y socket and it simply bitbangs the lines. You can see the driver here http://gadgeteer.codeplex.com/SourceControl/latest#Main/Modules/GHIElectronics/Thermocouple/Software/Thermocouple/Thermocouple_42/Thermocouple_42.cs
You could simplify the Gadgeteer socket requirements by using all 4 TC modules on one Y socket (that guarantees you have a full compliment of 8 pins) and changing the driver (you can see some tips to start you here https://www.ghielectronics.com/docs/122/gadgeteer-driver-modification ) The things you’d need to do are to have common MISO and SCK lines, and have individual CS lines for each of the devices.
For your particular problem, you REALLY want a thermocouple, not a one-wire device. The one-wire devices are much lower temperature so you’re likely to go out of range pretty quickly I would expect. I roast coffee in a converted hooded BBQ and use TCs for that, so that’s most likely what will suit your need too.
I would also say that from a connector standpoint, the reason you’ll find TCs have these spade lugs, is that it’s an industry standard. TCs tend to be used everywhere in industrial environments and need to be replaced, this is a simple connection method. Go look on ebay for different hot-end types and you might find one more like a meat probe - they aren’t cheap but they aren’t expensive, so I’d say get a few spares…
And final tip - the shielding on the TC wires itself can often lead to signal issues if you don’t ground it properly, and if your device isn’t also grounded to that. It’s worth playing around and checking the readings while you’re able to and make sure you’ve got as low a noise as possible (which will show as a stable temperature)