I enjoy a tart apple with a sharp cheddar but in general cheese and sweet doesn't always mix. I am going to have to try fresh green onions when my garden is up and running since I have garlic chives running wild.
Also what kind of monster eats low fat cheese? Cheese is just milk fats and milk proteins. Why would you remove half of that? Its the kind of terrible diet food that just tastes awful and seems like a punishment. I would never
Oxalates and oxalic acid are common in a lot of different foods. Anything that has the little tart taste like arugula generally contains it. So its in a large number of fruits and vegetables a lot of which are delicious. As long as you are drinking liquids on a regular basis and aren't eating something like Yellow Wood Sorrel daily which is super high in oxalic acid you will be fine.