what is you're reasoning for worry about the sodium content?
If you don't have hypertension and you are regularly exercising then you're sodium needs will be higher than RDI of sedentary individuals.
If you are worried about water weight changes then sodium/potassium ratio is more important.
There is potassium in cottage cheese too.
Potassium in cottage cheese - cottage cheese Potassium
And then eat some spinach after (or I think you could even mix it in if you were game!)