@kdfrawg I don't have a Keurig as such, something similar, yes, a KFee Preferenza sold by ALDI at half the price Starbucks wants for their own-branded version of the same device.
I reuse the pods. Slice the top off, prise up the plastic disc that sits atop the grounds, scrub & rinse out the pod paying particular attention to the filter in the bottom.
Then add your own ground coffee, tamp it down & reattach the plastic disc. You're good to go. If not used immediately, wrap the pod in cling film. Otherwise, just pop in in the machine & brew up.
// @phoneboy