Beat the egg whites on a mixer into a fluffy meringue about 3-4 minutes on medium-high setting. This is a low-sugar recipe so there is no sugar add to the egg whites (if you choose). You won't get peaks but you will get a fluffy meringue cloud that will work well in this meringue dessert.
Add ricotta by hand and combine fully. Add to a freezer safe bowl or glass.
Freeze for at least 30 minutes and then add curd if adding. Freeze again for a cold elevated dessert experience or enjoy!